THE UNITED REPUBLIC OF TANZANIA PRESIDENT’S OFFICE, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT KALIUA DISTRICT COUNCIL FORM TWO PRE – MOCK DISTRICT JOINT EXAMINATION - MAY 2024

BIOLOGY.

TIME 2:30 HRS

INSTRUCTIONS

1. This paper consists of three sections A, B and C.
2. Answer all questions in sections A and B and C
3. All diagrams should be drawn in pencil.

SECTION A (15 MARKS)

1.Question (i)- (x) are multiple choice items write down the best answer in each case .

i.Which branch of biology deals with the study of plants ?

1. Taxonomy
2.  Botany
3.  Ecology
4.   Zoology

ii.A liver is an example of :-

1. Tissue
2. a system 
3. an organ
4.   an organelle

iii.The ability of the body to fail to resist various infection :-

1. Vaccination 
2. immunity 
3. injection 
4. disease

iv.Green plants in a community are ecologically referred to as :-

1. Consumers 
2. decomposer 
3.  producers 
4. primary consumers

v.State of physical, mental and social well being is .

1. Health 
2. Immunity 
3.  Diseases 
4.  Good manner

vi.Practice of keeping one self clean all the time by maintaining a clean body from time to time is .

1. Good manner
2.  Personal hygiene 
3. Health 
4. Immunity

vii.Organs that work together to perform a certain function ..

1. Tissue 
2. Organ 
3. System 
4. Organism

viii.Relationship in which one organism benefit and the other one suffer by living together is called ..

1. Mutualism 
2.  Commensalism
3. Parasitism 
4.  Nutrition

ix.Ricket is a malnutritonal disorder caused by the lack of ..

1. Protein 
2. Carbohydrate
3.  Vitamin E
4.  Vitamin D

x.Animals which feed on plants only are called .

1. Herbivores 
2. Carnivores 
3. omnivores 
4. insectivores

2. Match the phrase or term in list A with the correct term or phrase in list B

SECTION B (70 MARKS)

Answer all questions in this section

3.You have been provided with organisms in the box below:-

1. Which organisms are producers ?
2. Mention two organisms which are primary consumers
3. .Outline which are decomposers
4. State what will happen when lion and hyena are removed from the system?

4.Complete the following statements by writing the correct answer in the space provided Goat, Deer, Bacteria, Fungi, Maize Plant, Lion, Lizard, Stalk Borer, Wild Beest, Hyena, Carrot, Rabbit

1. Process by which food is poken down into form that can be absorbed and used by the body is . . . . . . . . . . .
2. Too much intake or too little intake of food can cause . . . . . . . . . . . .
3. Food containing all types of food nutrients in correct proportion is . . . . . . . . . . . .
4. Mode of nutrition where by organisms feed on dead decaying matter is called . . . . . . . . . . . .
5. Mode of nutrition where by organisms can make their own food from simple organic substances is . . . . . . . . . . . .

5.Form one student was asked to observe section of plant cell using the light microscope.

1. Why was it necessary to use such an instrument?
2. Draw a well labeled diagram of plant cell

6.(a) How does osmosis differ from diffusion (3points )

(b) What will happen when plant cell is placed in salt water concentration?

7. (a)What do you understand by the term ‘’ water borne diseases’’ as used in biology?

(b) Name any three water borne diseases

8.You have been provided with the following organisms

(a)Which organisms in table above belong to :-

1. Phylum Zygomycota
2. Ascomycota
3. Basidiomycota

(b)State the importance of studying mushroom at your school (4points)

9. (a) State the way the small intestine is adapted to its function.(Any three points).

(b) Give one role of each of the following components of

1. Gastric Juice,
2. .Hydrochloric acid,
3. Mucus,
4. Epiglottis

SECTION C (15MARKS)

Answer question (10)

10.Caring and support people living with HIV/AIDS is essential for them to live healthily lives. In SIX points justify this statement

THE UNITED REPUBLIC OF TANZANIA PRESIDENT’S OFFICE, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT 

FORM TWO MOCK II EXAMINATION CODE

 033 BIOLOGY 

TIME: 2:30 Hours May, 2024

INSTRUCTION

1. This paper consists of sections A, B and C with a total of ten (10) questions.
2. Answer all questions in the spaces provided.
3. Section A carries fifteen (15) marks, section B seventy (70) marks and section C carries fifteen (15) marks.
4. All writing must be in blue or black ink except drawing which must be in pencil.
5. Cellular phones and any unauthorized materials are not allowed in the assessment room.

SECTION A (15 Marks)

(Answer all questions in this section)

1. For each of the items (i) - (x), choose the correct answer from the given alternatives and write its letter in the box provided.
(i) The feeding relationship represented by the sequences of organisms "Green Plants --> Grasshopper --> Frog" is called:

1. A. Food web
2. Interaction
3. Food chain
4. Pyramid

(ii). Which of the following will be a step to follow in a scientific procedure after formulating a hypothesis?

1. Conclusion
2. Experimentation
3. Observation
4. Problem identification

(iii). Which of the following are communicable diseases?

1. Cancer, gonorrhea and syphilis
2. Cholera, gonorrhea and syphilis
3. Cholera, kwashiorkor and marasmus
4. Cholera, marasmus and rickets

(iv). Which of the following is not a proper method of waste disposal?

1. Use of landfill
2. Make pit latrine
3. Recycling of materials
4. Burning plastic waste at home

(v). An organism with a rigid protective wall made up of chitin material is a representative of which Kingdom?

1. Fungi
2. Monera
3. Plantae
4. Protoctista

(vi) Which one of the following are examples of animal tissues?

1. Muscle, blood and bone
2. Brain, bone and liver
3. Skin, heart and brain
4. Muscle, liver and skin

(vii). Which of the following types of waste cannot be recycled? ......... .

1. paper
2. metal scraps
3. used syringe
4. plastics

(viii). Why are bats and birds not placed in the same species while they are closely related organisms? ...............

1. They cannot interbreed to produce a fertile offspring
2. They can interbreed to produce a fertile offspring
3. One lays eggs and another can give birth
4. One possesses feathers and another short beak

(ix). Which one of the following is recommended as a First Aid procedure for a victim who has been stung by bee?

1. Sitting quietly
2. Giving huge amount of water to the victim
3. Applying baking soda paste on the bee stung area.
4. Leaving the cotton on the stung area for few minutes.

(x) What will happen when a red blood cell is placed in a more concentrated solution?

1. Crenation
2. Turgidity
3. Haemolysis
4. Plasmolysis

ANSWERS

2. Match the functions of the digestive enzymes in LIST A with the names of the specific enzymes in LIST B by writing the letter of the correct response below the corresponding item number in a table provided.

SECTION B (70 Marks)

(Answer All Questions)

3. Fausta and Isaka were in the Laboratory examining cells from different Living things using Light microscope. Fausta saw Cell A while Isaka saw Cell B as shown in Figure 1 below. Study their observation and then answer the questions that follow.

Cell A	Cell B

Figure 1

(a) What are the real names of cell A and Cell B?

(b) Tabulate four differences between the two cells named in 3(a).

(c) What are the four similarities between the two cells named in 3(a).

4. Name and draw the Laboratory apparatus that can be used to:

(a) Crush and grind solid complex things into fine powdered or soft simple substances.

(b) Picking up smaller animals such as insects without hurting them.

(c) Estimate the population of living things in an area.

(d) put and observe specimen closely.

(e) Heat, test and store chemicals.

5. Draw a neat diagram of human digestive system and label only regions of digestion in it.

6. Figure 2 is the diagram of a vector of some communicable diseases. Study it careful and then answer the questions that follow:

(a) What is the common name of the vector in Figure 2 above? _____________________

(b) Name two common pathogens that can be spread by the vector named in 6(a)

(c) Mention the disease caused by each pathogen named in 6(b)

(d) Explain four common preventive measures of the infections that can be transmitted by the vector named in

7. (a) What does artificial classification and natural classification mean?

(b) What are the similarities between Mushroom and Moss plant? Mention four points.

8. (a) State the functions of the following parts of the microscopes.

(i) Mirror (ii) Arm (iii) Base

(b) Calculate the highest total magnification of the Light microscope with 10x Eyepieces lens and 15x as well as 40x Objective lens magnification.

9. (a) explain four habits that everyone must consider during conversations.

(b) How can you know that a female human being is in puberty stage? Give six points.

SECTION C (15 Marks)

(Answer Question ten (10))

10. A health officer of Mkunduru village has been punishing every family without rubbish heap and good pit latrine in their homes. Explain six points to support the idea of the village officer.

PRESIDENT’S OFFICE REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT-RALG

RUFIJI DISTRICT COUNCIL

DISTRICT FORM TWO COMPETENCE EXAMINATIONS – 2024

033 BIOLOGY

TIME: 2:30 HRS Friday 22^th March, 2024 AM

INSTRUCTIONS

1.  This paper consist of sections A ,B and C with total of ten (10) questions
2. . Answer all questions in the space provided
3.  Section A carries fifteen (15) marks, section B seventy (70) marks and section c carries fifteen (10)Marks
4. All writing must being blue or black ink except drawing which must be in pencil
5. . Cellular phones and any unauthorized materials are not allowed in assessment room
6. Write your Index number on every page

SECTION A (15 MARKS)

01. For each of the items (i) - (x), choose the correct answer from the given alternatives and write it's letter in the box provided.

i. A mother went to a hospital with her baby complaining of the baby's high body temperature. Which instrument will be used to examine the baby.

1. Beam balance
2.  hermometer. 
3. Stop watch 
4. Stethoscope.

ii. Why is chlorophyll necessary for photosynthesis?

1. Absorb sunlight energy
2.  plit water molecules.
3. Manufactures carbohydrates 
4. Transport water and minerals.

iii. Which panch of biology deals with the study of plant.

1. Taxonomy
2.  Botany 
3.  Transpiration. 
4. Zoology.

iv. Which one of the following is applied to the members of Kingdom plantae

1. They have cell wall made up of chitin
2. They feed on dead and decaying organic matter
3. they have cell wall made up of cellulose
4. They do not have mempane bound nucleus.

v. Which food will you recommend to a child suffering from kwashiorkor.

1. Milk, groundnuts, Beans and a Meat
2. Milk, cassava, sorghum and wheat
3. Cabbage, Spinach, cassava and Egg
4. Sorghum, cassava, rice and Yams

vi. Reason for Ascomycota to be called ascomycetes or sac fungi is.

1. The spores can be transferred by wind
2. The spores can be produced sexually.
3. Their spores are enclosed in sac - like structure called asci
4. They are single - celled organism

vii. Mr. Chain was teaching a form two students about division of Kingdom plantae which one among the following is not a divisions.

1. Basidiomycota 
2. Coniferophyta.
3. Pteridophytes 
4. Angiospermophyta

viii. Why is advised to build an incinerator in every hospital and health center?

1. For burning hazardous wastes 
2.  For collection wastes
3.  For disposing gaseous wastes.
4.  For disposing liquid wastes

ix. Which is not advisable when giving First Aids to a Snake bite victim?

1. Calm them down 
2. Cut the wound.
3. Remove jewelery from the bitten part 
4. Lower the bitten

x. If you do not have gloves, you can also use.............. to protect your hands?

1. Socks
2. Plastic.
3.   Tins 
4. .A piece of cloth

2. Match each item from LIST A with a corresponding item in LIST B and write it's letter in a space provided.

SECTION B (70 MARKS)

3. . A form two students were asked to observe sections of plant cell s using light microscope. 

(a) Show the parts responsible for

1. Protection and give the cell definite shape
2. Site for chemical reaction
3.  Home of heredity material
4.  Allow sensitive movement of substance across the cell
5. Site for food manufacturing

(b) Draw a well labelled diagram of the cell you have observed in (a) above (Label seven parts)

4. . (a), Imagine you have invited to Mississippi village to educate on diseases. Identify the communicable disease and non communicable diseases from the following list. Marasmus, Scurvy, Cholera, Tuberculosis, Pellagra, Leukaemia and Malaria

1. Communicable diseases;
2. Non communicable diseases

(b) How is each of the communicable diseases sorted in (a) ( i ) transmitted?

5. (a) According to the laboratory rules, what would you do in the following situations?

1. There is unused acid left in the test tube after you finish your experiment .
2. You need to perform an experiment but there is nobody in the laboratory
3. Your classmate is suffocating during a learning activity
4. One of your classmates has pought some peanut in the laboratory
5. You need to switch off electricity

(b). In order to maintain good health,we have to keep our body and environment clean. piefly state the significance of this practice (five point)

6. (a) pead molds and mushrooms are members of the same group.

1.  What is the name of grouping organisms according to their similarities and differences
2. In which groups are these organisms in 6(a) belongs?
3. what are the phylum of the group you mentioned in 6(a) ii above

(b) what are the importance of group to which these organisms in 6 (a) belongs?

7. (a) What are the differences between the following terms? Give one example in each.

1.  Chemotrophic and phototrophic nutrition
2.  Saprophytic nutrition and holozoic nutrition
3. Herbivorous ànd carnivorous 
4. Autotrophic nutrition and Heterotrophic nutrition

(b). Why are human being, cats and dogs are regarded as Omnivorous animals

8. A 3 (three) years old child has been pought to a hospital following these complaints. He is very weak, cries and eats a lot, and has persistent diarrhoea. with wrinkled skin like an old man.

1. Which nutritional disorder is a child suffering from? 
2. What advise will you give to the child's parents?

(b). Dina is 70kg and 150cm tall

1. . What is the BMI? 
2. What dangers are facing Dina? 
3.  What advise will you give Dina and why

9. Maria is a form one student with 14 years old. She is scaring on different changes that occurs in her body, but a teacher told her that are normal changes occurring during puberty.

(a). Define the term puberty

(b). Mention four (4) changes that might occur to Maria

SECTION C (15 MARKS)

Answer question number ten (10)

10. Wastes are dangerous to everyone one in a community if poorly disposed. With six points explain how wastes can affect people as well as environment at all.

PRESIDENT’S OFFICE REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT  MVOMERO DISTRICT COUNCIL FORM TWO MOCK EXAMINATION

INSTRUCTIONS

1. This paper consists of section A, B and C with a total of (10) questions
2. Answer all questions in section A, B, and C.
3. Section A carries thirty (15) marks, Section B seventy (70) marks and section C carries twenty (15 marks)
4. All writing must be in blue or black ink except drawing which must be in pencil
5. Cellular phones and any unauthorized materials are not allowed in the examination room.
6. Write your assessment number (index number) at the top right corner of every page

SECTION A ( 30 marks)

Answer all questions under this section

1. For each of the following items (i - ix) choose the correct form among the alternatives and write its letter in the box provided.

1. What is the cause of scurvy as a nutritional deficiency?

1. vitamin C in the diet
2. mineral salt in the diet
3. vitamin B12 in the diet
4. vitamin D in the diet

2. If you are asked to prepare first Aid kit with its components which of the following will not include?

1. iodine tincture
2. medicine to cure diseases
3. a pair of scissors
4. sterilized cotton wool

3. Which of the following is a risky behavior?

1. accepting favours and gifts from parents
2. having many sexual partners
3. keeping good company and avoiding immoral friends
4. shaking hands with HIV/ AIDS infected individuals

iv. Why members of a division in which funaria specie belongs is referred as primitive plants?

A They lack true vascular bundles such as xylem and phloem

B They have cell wall made up of cellulose

C They have true vascular bundles such as xylem and phloem

D They have cell wall made up chitin

v. Which of the following organelles controls the movement of substances in and out of the cell?

1. plasma membrane
2. vacuole
3. cell wall
4. cell nucleus

vi Which is the first site of proteins digestion in the human digestive system?

A Mouth B duodenum

C stomach D Small intestine

6. Farmers in a certain village found their maize crops have yellow leaves with dead spots at the margin and tips, which mineral do the maize crop lack?

1. calcium
2. Molybdenum
3. phosphorus
4. potassium

Viii The sarangi football team goal keeper fell down during the match due to muscle cramps, which component in the first aid kit will you use to give him first aid?

A .Vaseline B. Spirit C . Liniment D. scissors ( )

ix. Which organism feed on primary consumer?

A .Lion, Hyena and Leopard B. leopard, buffalo and giraffe

C. hyena, zebra and wildebeest D. Zebra, wildebeest and buffalo ( )

x. What are the by-products in photosynthetic process?

A. Carbohydrate and water B. Carbohydrate and oxygen

C. Oxygen and water D. Carbohydrate and carbon dioxide

E . Oxygen and energy

2. Match the symptoms in List A with digestive disorders in List B by writing the letter of the correct response below the corresponding item number in a table provided

 Answers

SECTION B (70 Marks)

Answer all questions.

3.During an experiments that involved two samples A and B, the scientist observed cells whose organelles are enclosed in membranes in sample A and cells whose nuclear material are not bound with a membrane in sample B.

(a) Identify types of cells observed in sample A and B respectively. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) With three (3) points differentiate the types of cell observed in sample A and B. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

(c) Draw a well labelled diagram of cell observed in sample A and B respectively.

4.A bread was put in a wet cupboard. After few days a black thread like structures which ended up in a club like shape appeared on the bread.

(a) Write the common name of the organism that grew on the bread surface.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) Name the phylum or division in which observed organism belongs.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(c)Outline three (3) advantages of the member of the phylum you mentioned in (b) above.

(i) . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(ii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

(iii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(d)Suggest the kingdom in which the observed organism belong. Give three(3) reasons to support your suggestions.

Kingdom . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reasons (i) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . .

(i) . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(iii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

5.(a) Name four(4) major parts of the human digestive system involved in digestion of food substances and indicate a type of substances digested in each part.

(b) Give three (3) adaptations of ileum for the absorption of food in the alimental canal.

(i) . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(ii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

(iii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(c) With three(3) points explain how does a biology laboratory differ from other school facilities.

(i) . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(ii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

(iii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 (a) Differentiate between a pandemic and endemic disease. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

(b) How does communicable and non-communicable disease differ. Give example in each.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(c)A child complains to her mother that she has a headache and pains in joints, she also feels uneasy, vomits, and has abdominal pains. Her mother realized that a child also has a fever she takes her to hospital.

(i) Which disease do you think the child is suffering from.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(ii)What is the cause and mode of transmission of the disease.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(iii) How can the disease be prevented. Give three (3) points.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7(a) Suppose you are invited by the headmaster of Kilimanjaro secondary school to attend the laboratory building meeting. Which conditions will you advice to the owner of the school to consider to build a laboratory with the required standards. Give five (5) points.

(i) . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

(ii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....................................................................................................................................

(iii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (iv) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(v) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b)What do you understand by the term binomial nomenclature?

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....

(c)Explain four (4) rules observed in binomial nomenclature.

(i) . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(ii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

(iii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (iv) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.(a) A person got a bicycle accident and was badly injured. If you are the first person to reach in an accident area.

(i) Name the assistance that you are recommended to give to him at the time after the accident. . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) Why do you advice other people to give the same help in case they face a similar situation? Give four (4) points to support your answer.

(i) . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(ii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

(iii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (iv) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(c) Give five (5) precaution that should be taken in giving the assistance named in a(i) to a victim of snake bite.

(i) . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(ii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

(iii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (iv) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(v) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9. Analyze four (4) methods of getting rid of unwanted materials in an environment.

(i) . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(ii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

(iii) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (iv) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(v) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

 SECTION C: (15Marks)

Answer all questions in this section

10. Discuss seven (7) factors that affect the ability of the body to fight against infections.

. . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

 TANZANIA HEADS OF ISLAMIC SCHOOLS COUNCIL

 FORM TWO INTER ISLAMIC MOCK EXAMINATION

 033  BIOLOGY

TIME: 2:30 Hours  Wednesday 26^th July, 2023 a.m.

Instructions

1. This paper consists of sections A, B and C with a total of ten (10) questions.
2. Answer all questions in each section.
3. All writings must be in blue or black ink except drawings which must be in pencil.
4. Cellular phones and any unauthorized materials are not allowed in the examination room.
5. Write your Candidate Number on the top right on every page.

SECTION A (15 Marks)

Answer all questions in this section

1. For each of the items (i) – (x), choose the correct answer from among the given alternatives and write its letter in the box provided.

(i) Maimuna is a form one student with a dream to be an expert of fungi. What biological term can describe her in the future?

1. Microbiologist
2. Physiologist
3. Mycologist
4. Entomologist

(ii) Most people in the society are not aware with blood groups.If you want to educate them about people with blood group O antigen the correct statement should be:

1. Antigen B
2. Antigen A and B
3. Antigen A
4. No antigen

(iii) The suitable rank of vibrio cholera proposed by taxonomist is:

1. Kingdom monera
2. Kingdom Algae
3. Kingdom plantae
4. Kingdom fungi

(iv) A plasma membrane is said to be selective permeable because:

1. Allows only water to pass freely and restricts others
2. Allows all molecules of average diameter to pass through it
3. Allows very small molecules to pass through freely
4. Controls the substances which are allowed to enter and leave the cell

(v) After a strenuous exercise, a person experiences muscular pain and tiredness (fatigue). This is mainly due to:

1. Complete oxidation of pyruvic acid to carbon dioxide and water
2. Accumulation of lactic acid in muscles
3. Accumulation of poison in the muscles
4. Reduction of water molecules in the muscles

(vi) A person picks up a telephone after hearing it ringing. What does this action show?

1. Respiration and growth
2. Response and irritability
3. Irritability and movement 
4. Sensitivity and irritability

(vii) During a biological experiment Jaafar dissolved 2g of potassium permanganate crystals and dissolved it in 1 litre of water. What process was demonstrated by Jaafar?

1. Mass flow
2. Diffusion
3. Osmosis
4. Transpiration

(viii) Our Headmaster advises us to be honesty, respecting each other, polite and helping others. The aim of his advice was to maintain :

1. Personal hygiene
2. Behaviours
3. Attractive school environment
4. Good manners

(ix) The alcoholic fermentation in breweries industries is not human physiological influences because this is the result of: 

1. Photosynthesis process
2. Aerobic respiration by animals
3. An aerobic respiration by fungi
4. Aerobic respiration by bacteria

(x) Mr. Matwebe’s son went to the hospital to ask for treatment due to outward bending of his leg’s bones. This may be resulted by deficiencies of:

1. Vitamin A
2. Vitamin B
3. Vitamin C
4. Vitamin D

2. Match the description of scientific procedures in LIST A with the corresponding scientific procedures in LIST B by writing the letter of the correct response below the item number in a table provided.

ANSWERS:

SECTION B (70 Marks)

Answer all questions in this section

3. (a) How is holozoic nutrition different from saprophytic nutrition?

_____________________________________________________________________ _____________________________________________________________________

_____________________________________________________________________

(b) Human being and Goat are both referred to as animals that perform holozoic nutrition, but they are not identical in their digestive system. Justify this statement by using three biological facts.

(i) _______________________________________________________________

(ii) _________________________________________________________________

(iii) _________________________________________________________________

4. A child complains to her mother that, she feels pain in her joints, abdomen, and headache also she was vomiting and feeling fever.

(a) Which disease do you think the child is suffering from?

_____________________________________________________________________ _____________________________________________________________________

_____________________________________________________________________

(b) Suggest the causes and mode of transmission of the disease

(i) Causes

_______________________________________________________________ _______________________________________________________________

(ii) Transmission

_______________________________________________________________ _______________________________________________________________ _______________________________________________________________

(c) How can the disease be prevented?

(i) _________________________________________________________

_________________________________________________________

(ii) _________________________________________________________

_________________________________________________________

(iii) _________________________________________________________

_________________________________________________________

(iv) _________________________________________________________

_________________________________________________________

5. Serengeti national park is highly populated with various wild animals and plants species, some of them are Gazelle, Zebra, shrubs, cheetah, Rhizopus, grasses and lion. Use the list given to answer the following questions:

(a) Construct a food web which includes all listed members.

(b) Group the listed organisms with respect to their trophic levels.

(i) _______________________________________________________________

_______________________________________________________________

(ii) _______________________________________________________________

_______________________________________________________________

(iii) _______________________________________________________________

_______________________________________________________________

(iv) _______________________________________________________________

_______________________________________________________________

6. (a) The diagram below represent the potential organ in plant life; carefully observe it and answer the following questions:

Figure 1.1

(i) What does the diagram above represent? ______________________________

(ii) Name the parts labelled P, Q, R and S

P ____________________________________________________________

Q ____________________________________________________________

R _____________________________________________________________

S _____________________________________________________________

(iii) Highlight one role played by each of the following parts:

P ____________________________________________________________

Q ____________________________________________________________

S ____________________________________________________________

(iv) Suggest two importance of physiological process carried out by the organ expressed by figure 1:1

_______________________________________________________________ _______________________________________________________________

_______________________________________________________________

7. Mr. Mzee is a laboratory technician at Mtoni Secondary School. He decided to use form two A stream (classroom) as biology laboratory.

(a) What modification should be done to meet the standard?

(i) _______________________________________________________________

(ii) _______________________________________________________________

(iii) _______________________________________________________________

(iv) _______________________________________________________________

(b) Write any four rules to be obeyed by students before using their new laboratory.

(i) _______________________________________________________________

(ii) _______________________________________________________________

(iii) _______________________________________________________________

(iv) _______________________________________________________________

8. (a) Lungs is a respiratory surface for various terrestrial organisms. What are the criteria that enable lungs to perform their roles?

(i) _______________________________________________________________

(ii) _______________________________________________________________

(iii) _______________________________________________________________

(iv) _______________________________________________________________

(b) Distinguish aerobic from anaerobic respiration (any two points).

9. (a) Most of youth in Tanzania subject themselves at a great risk of being infected with STIs and HIV infection. Show them any four ways they can use to stay safe.

(i) _______________________________________________________________

(ii) _______________________________________________________________

(iii) _______________________________________________________________

(iv) _______________________________________________________________

(c) Why we should seek health care for STDs and opportunistic diseases? (Any two reasons)

(i) _______________________________________________________________

(ii) _______________________________________________________________

10 (a) Bacteria are categorized into two main groups due to their status of affecting our body health. Explain them with two examples each

(i) _______________________________________________________________

_______________________________________________________________

(ii) _______________________________________________________________

_______________________________________________________________

(b) By using four biological evidences prove the statement that: “Bryophytes are the most primitive plants on the earth.”

(i) _______________________________________________________________

_______________________________________________________________

(ii) _______________________________________________________________

_______________________________________________________________

(iii) _______________________________________________________________

_______________________________________________________________

(iv) _______________________________________________________________

_______________________________________________________________

SECTION C (15 Marks)

Answer the following question

10. “Transpiration is regulated by both plant features and the surrounding”. Use six biological facts to defend this statement.

________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________

Candidate’s Number………………………

THE UNITED REPUBLIC OF TANZANIA PRESIDENT’S OFFICE, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

LUDEWA DISTRICT COUNCIL FORM TWO MOCK EXAMINATION 2022

033 BIOLOGY

Time2:30hrs 9th June 2022

INSTRUCTIONS.

1. Answer all questions from this paper

2. This paper consists of three sections A, B and C.

3. .Except for diagrams that should be drawn in pencil, all writings should be in blue or black ink

4. Cellular phones are NOT allowed during attempting this exam.

5. Write your Examination Number/Names on every page of your answer booklet.

SECTION A.15 MARKS.

1. Choose the most correct answer among the given alternatives and write its letter in the table provided below

i. One of the best lesson a teacher taught us was about muscles that are found in different parts of the body. Cardiac muscle can be found in which part of the animal body?

1. Skull
2. Limbs
3. Heart
4. Head

ii. Mwana Poya is studying in form one class. Help the one to choose the main product of anaerobic respiration process in plant.

1. Uric acid
2. Alcohol
3. Lactic acid
4. Water

iii. A doctor received medical results from laboratory technician and identified that a victim is affected by ectoparasites. Which of the following parasitic organisms is typical ectoparasite?

1. Tick
2. Plasmodium
3. Tapeworm
4. Roundworm

iv. Mr. Kichoka did not understand how to choose components of blood. Help him to choose. Which of the following is NOT a component of blood?

1. Erythrocyte
2. Leucocytes
3. Leukemia
4. Plasma

v. Mr.Mwamri explained wrongly on the aim of experiment during scientific investigation, The aim of experiment in the scientific investigation is to

1. Identify the problem
2. Test the hypothesis
3. Predict the result
4. Confirm the problem

vi. There are so many branches of Biology that taught by the teacher. Branch of Biology that deals with body defense against diseases

1. Mycology
2. Parasitology
3. Immunology
4. Entomology

vii. One of the apparatus used in the field MR Solomoni told us is cages. Cages is used for keeping.

1. live Specimens
2. Preserving Specimens
3. Dead Specimens
4. Live aquatic specimens

viii. Mr. Ibra don’t know the effect of burning plastic bags. Which of the following can be caused by burning plastic waste materials?

1. Bruised skin
2. Heart problems
3. Joint pains
4. Breathing Problems

ix. Mrs.Mudaba confuse between first and second stage of AIDS. The second stage of HIV/AIDS is

1. Has flu-like symptoms
2. Has no symptoms
3. Is full-blown AIDS
4. Leads to syphilis

x. .Help Mr.Kinjuga to show which of the following statements is best describes the role of root hair?

1. Provides anchorage of the root.
2. Protects the delicate surface cells of the enlarging root.
3. Adds the length of the root by repeated division.
4. Provides large surface area for absorption.

ANSWERS

2. Match the phrases in List A with the responses in List B by writing the letter of the correct response from List B beside the item number of List A in the answer booklet provide.

ANSWERS

SECTION B 70 MARKS.

Answer all questions from this section in which all questions carries equal marks of 10.

3. (a)Waste is any substance that is no longer in use, the teacher said. Mwajuma asked to a teacher to explain the meaning of waste disposal. If a teacher chose you what answer did you respond to Mwajuma?

(b)Poor waste disposal has led to many effects. Continue telling Mwajuma the effects of poor waste disposal (use 4 effects)

4. Virus is very dangerous microorganism to both plants and animals. Contrary to its detrimental effects there are so many advantageous of viruses. Explain five advantages

5. Good examples of systems that uses Mass flow as the means of transporting materials from one part of the body to another is Human circulatory system and Lymphatic system. What are six (6) disorders of circulatory and four (4) disorders of lymphatic systems?

6. a) Mr.Mwenemutapa failed to explain the meaning of the terms mentioned below since he studied such thing long time ago. Teach him.

i. Health

ii. Immunity

(b)As a student of form two class explain what are the factors that affect body immune system?.

7. (a) Sophia does not know the meaning of some biological phenomena. As the biologist help Sophia to explain the meaning of these biological phenomena which are unknown.

i. Cell differentiation

ii. An organ

iii. A system

(b)What are three examples of specialized cells of animals?

8. (a)Biology teacher taught all about ecology but the term Balance of nature he was not worked on it. What do you understand by the term balance of nature?

(b)Draw a food chain and food web from the following organisms Toad, Vulture, Rabbit, Grass, Snake, and grasshopper

(c) Explain what would happen from food web drawn above if

i. All the grass died?

ii. All the snakes were killed?

9. (a)For the organism to survive there must be transportation of materials. Explain the meaning of transportation of materials

(b) Juma tasked his students to draw a large and well labeled diagram of external structure of the mammalian heart. If you are a student of Juma, Perform that task

PRESIDENT'S OFFICE REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT 

TANZANIA HEADS OF ISLAMIC SCHOOLS COUNCIL

FORM TWO INTER ISLAMIC MOCK EXAMINATION  

 033 BIOLOGY

TIME: 2:30 HOURS Friday, 24^th September 2021 a.m.

Instructions

1. This paper consists of sections A, B and C.

2. Answer all questions in sections A and B and only ONE (1) question from section C.

3. All writings must be in blue or black ink except drawings which must be in pencil.

4. All communication devices and Calculators are not allowed in the Examination Room.

5. Write Your Examination Number on the top right of every page.

SECTION A: (30 Marks)

Answer all questions in this section

1. For each of the items (i)-(x), choose the most correct answer from among the given alternatives and write its letter in the box provided:

(i)Which of the following is not a sexually transmit disease?

1. Trochomoniasis
2. Candidiasis 
3. Vaginosis
4. holera.

(ii) The function of sunlight energy in the human skin is to stimulate the synthesis of:

1. Vitamin A
2. Vitamin C
3. Vitamin D 
4. Vitamin K.

(iii)The basic importance of all laboratory rules is to:

1. Avoid dirtiness
2. Prevent student from entering
3. Reduce accidents
4. Reduce the use of chemical in the lab.

(iv) Plants are said to be vascular if: 

1. They contain phloem only
2. They contain xylem only
3. They contain cambium
4. They contain phloem and xylem.

(v) A group of interdependent organisms living in an environment is called:

1. Community
2. Ecology
3. Ecosystem 
4. Population.

(vi) Which of the following characteristics could be used to distinguish birds from mammals?

1. Control of body temperature
2. Use of lungs
3. Number of limbs
4. What covers their skins.

(vii) A liquid prepared by either weak or dead microorganisms is called:

1. Serum
2. Immunity
3. Immunization
4. Vaccine.

(viii) The feeding relationship represented by the sequence

Green plants → Grasshopper → Frog is called:

1. Food web
2. Food chain
3. Predation 
4. Community.

(ix) The blood vessel which carries deoxygenated blood from the heart to the lungs is:

1. Pulmonary vein
2. Pulmonary artery
3. Aorta 
4. Venacava.

(x) What does the concept of good health imply? 

1. A state of physical, sexual and mental fitness
2. Being physically, mentally and socially fit
3. A state of family well being
4. Reproductive health and family care.

2. The following statements are either correct or incorrect. Write TRUE if the statement is correct and FALSE if the statement is incorrect.

(i) A person with blood group AB is called a universal donor. ______________

(ii) Before the blood returns to the heart, it has to be oxygenated in the liver. ____

(iii) All green plants are decomposers. ________________

(iv) Maintaining personal hygiene reduces the risks of infection. ______________

(v) Malaria is caused by plasmodium. _____________________________

(vi) Proteins in the diet are needed for growth and repair.. __________________

(vii) Vitamin K helps in blood-clotting. ______________________

(viii) The organ in the human body which helps the blood to receive oxygen is the heart. ____________________________

(ix) Grouping of organisms basing on their differences and similarities is called taxonomy. ___________________

(x) Age is one of the important factor to consider before blood transfusion.

_______________

3. Match the items from List A with the responses from List B by writing the letter of the correct response besides the item number.

Answers:

4. Complete each of the following statements by writing the correct answer in the space provided:

(i) __________________ is used for cutting hanging skin and dressing materials.

(ii) _______________ are important for cleaning cuts wounds and preventing infections.

(iii) _______________ is helpful for removing thorns and insects stings left behind in the body.

(iv) _______________ is a painful and swollen part of the skin with no cut.

(v) A sudden involuntary contraction of muscles that is painful and makes them temporarily unable to work properly is called _____________________________

SECTION B: (50 Marks)

Answer all questions in this section

5. (a) What do you understand by the following terms:

(i) Binomial nomenclature

(ii) Taxonomy

(iii) Species

(b) State the taxonomic hierarchy of classification in an orderly manner:

(c) Lion and Leopard cannot interbreed to produce a viable offspring. (Give one reason)

6. Study the structure of the villus below and answer the questions that follow:

(a) In which part of the alimentary canal is the above structure found?

(b) Name parts labelled X, Y and Z

(c) State three adaptations of the above structure for the absorption of food in the alimentary canal.

7. Study the diagram of the following organisms carefully and answer the questions that follow:

(a) Identify the organisms above by their common Names:

R is: _________________________________________________________

S is: _________________________________________________________ 

(b) Classify the above organisms up to class level.

(c)State the locomotory structures of the organisms above.

R _____________________________________________________________

S _____________________________________________________________

8. (a) What do you understand by the following terms

(i) Diffusion?

(ii) Osmosis

(b) Differentiate between diffusion and osmosis

9. (a) Define natural environment

(b) Give at least four (4) importance of natural environment.

SECTION C: (20 Marks) 

Answer one (1) question from this section

10. (a) What do you understand by the term risky behaviour?

(b) Give examples of risky behaviours and practices. (4 points)

(c) Explain any four (4) skills which can help to avoid risky behaviours and practices.

11. Write an essay on photosynthesis under the following guidelines:

• Meaning
• Site of the process
• Raw materials
• Conditions
• End products
• Importance of the process