THE PRESIDENT’S OFFICE

REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

BIOLOGY FORM TWO PRE- MOCK EXAMINATION

CODE 033

TIME: 2:30 HOURS          

INSTRUCTIONS.

• This paper consists of section A, B and C with the total number of ten(10) questions
• Answer all questions in each section
• Section A carries (15) marks, section B (70) marks and section C carries (15) marks
• All writing must be in blue/black ink except drawing which must be in pencil
• 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 among the given alternatives and write its letter beside the item number in the answer sheet provided

 (i) Which of the following is the safest way to dispose of a broken glass test tube in a laboratory? 

1. Throw it away in a regular trash can.
2.   Wrap it in paper and dispose of it in a designated sharps container. 
3.  Rinse it down the drain.
4.  Leave it on the lab bench for the janitor.

(ii) Which of the following is NOT a function of the immune system?

1.  Fighting off infections
2.   Producing white blood cells
3.  Breaking down food molecules 
4.  Recognizing and destroying harmful substances

(ii)The basic unit of life that makes up all living things is called a: 

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

(iv) What is the BEST way to dispose of a used chemical from an experiment? 

1.  Pour it down the drain.
2.   Throw it away in a regular trash can.
3.  Follow the instructions on the label for safe disposal. 
4.  Leave it in the lab for the teacher to dispose of.

(v)If someone has a minor cut, the first step is to: 

1.  Apply a bandage directly to the wound.
2.   Clean the wound with soap and water.
3.  Put ice on the wound.
4.  Leave the wound uncovered to air out.

(vi)The transport system in plants that carries water and dissolved minerals throughout the plant is called the: 

1.  Nervous system
2.   Circulatory system
3.   Respiratory system
4.  Xylem

(vii) Which of the following is NOT a source of carbohydrates for animals?

1.  Meat
2.   Bread
3.   Fruits
4.  Water

(viii) Plants get most of their energy from: 

1.  Sunlight 
2.   Water
3.   Soil
4.  Air

(ix)Which of the following methods of food preservation involves drying the food to remove moisture? 

1.  Canning
2.   Freezing
3.  Dehydration 
4.  Salting

(x)What is the purpose of pasteurizing milk? 

1. To add creaminess
2. To kill harmful bacteria
3. To improve the taste
4. To increase the shelf life slightly

2. Match the food preservation method on the left with the best description on the right.

SECTION B: 70 MARKS

Answer all questions in this section

3.   a) Name one product of the light stage during photosynthesis  

      b) Name the process by which water molecules are split by light during photosynthesis 

     (c)What name is given to the process whereby:

1.      Red blood cells wrinkle after losing their water to a hypertonic solution?
2.    Plant cells become flaccid after losing their water to a hypertonic solution?             

4.   (a)Four equal strips A,B,C and D were cut from a potato whose cells had a sugar concentration of 28.5%.The strips were placed in sugar solutions of different concentrations as follows:

A: 10%,   B: 15%, C: 25%, D:  35%

1.      What changes would you expect in strips A and D?    
2.    Account for the change in strip D      

2.   The figure below shows a small piece of visking tubing which is filled with potassium permanganate solution. Its free ends were tied tightly to prevent leakage .It was then dipped in a beaker full of distilled water. The set up was left for 2 hours. It was observed that the distilled water was colored purple.

9.      What physiological process was being investigated?    

(ii) Account for the observation made in (a) above.  

5.   (a) State the importance of nucleic acids to an organisms   

2.   State the significance of the following to a leaf:-

1.      Thinness         
2.    Presence of air spaces       
3.  Stomata         

3.    What is the role of roof hairs in plants     
4.   What is meant by the term organ systems in organisms?   

6.   (a) State three factors that affect the rate of diffusion    

2.   What is compensation point?      
3.    State two properties of monosaccharide     
4.   What is the main function of monosaccharide in organisms? 

7.   (a) State the formula for calculating magnification  when using the following

1.   Hand lens/naked eyes        
2.                A light microscopic        

2.   Explain why a mule, a product of mating between a horse and a donkey is sterile.                                                                                                               
3.    State two factors considered while grouping the organisms in the same species                                                                                                                                                                       

8.   I. Describe how you would carry out food tests to test the presence of starch and reducing sugars on a food sample.

1.   Test for starch        
2.   Test  for reducing sugar        

2.  Explain how surface area to volume ratio idea may be applied to explain rate of diffusion in organisms.

9.   (a) Name the taxonomic unit with:

1.      The greatest number of organism.     
2.    The least number of organisms     

2.   Define the term cell       

c) Name the kingdom in which the organisms named below belong.

1.          Bacteria         
2.          Paramecium        
3.          Yeast         

SECTION C: 15 MARKS

10. Describe the formation of lymph in human body

PRESIDENT OFFICE REGIONAL ADMNISTRATION

AND LOCAL GOVERNMENT

SECONDARY EXAMINATION SERIES 

COMPETENCE BASED ASSEMENT

BIOLOGY FORM TWO 

TERMINAL EXAMS-MAY– 2023 

033

Time: 2:30 Hours

INSTRUCTIONS

1. This paper consists of sections A, B and C with a total of ten (10) questions.
2. Answer all questions
3. Section A and C carry fifteen (15) marks each and Section B carry seventy (70) 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

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

1. Wave-like movement caused by muscular contraction and relaxation along the digestive tract that helps to propel food is known as;

1. Gulping
2. Peristalsis
3. Digestion
4. Assimilation
5. Absorption

2. When examining a cell from unidentified organ of a mouse under an electron microscope, a student found an organelle with folding in the inner membrane. Which organelle is this?

1. Golgi body
2. Endoplasmic reticulum
3. Ribosomes
4. Mitochondrion
5. Nucleus.

3. The part of a cassava plant modified for food storage is;

1. Underground stem
2. Underground root
3. Corn
4. Prop root
5. Underground stalk

4. Green plants are known as producers because;

1. Produce chlorophyl in chloroplast
2. Produce green leaves
3. Contain fruits and seeds
4. Grow in fertile soils
5. Make food from simple substances

5. The reason why we experience increased breathing during race is that, it supplies extra;

1. Energy required by active muscles
2. Oxygen required by active muscles
3. Heat required by active muscles
4. Enzymes required by active muscles
5. Work required by the muscles for running faster

6. The body can make the following vitamin by itself;

1. Vitamin A
2. Vitamin B
3. Vitamin K
4. Vitamin D
5. Vitamin E

7. By what process does carbon dioxide pass from the blood into alveoli of the lungs?

1. Diffusion
2. Osmosis
3. Respiration
4. Transpiration
5. Oxidation.

8. Plant production and photosynthetic rate in a field are greatly influenced by?

1. Temperature
2. Water supply
3. Carbon dioxide supply
4. Soil fertility
5. Light intensity.

9. An enzyme is a:

1. Fat
2. Mineral salts
3. Protein
4. Vitamin E
5. Carbohydrate.

10. The main products of photosynthesis are transported away from the leaves by the;

1. Phloem
2. Xylem
3. Cortex
4. Veins.
5. Sieve tubes

2. Match the descriptions of the blood circulation system in List A, with their corresponding blood vessels in List B by writing the letter of the correct response beside the item number in the answer booklet provided.

SECTION B. 70 MARKS. ANSWER ALL QUESTIONS FROM THIS SECTION

3. The figure below illustrates a process that takes place in alimentary canal.

1. Name the process
2. Name two muscles that enhance above process.
3. Explain importance of roughage to above process.
4. State how stomach protects itself from being digested by enzyme pepsin.
5. Name an enzyme produced in stomach of infant to enhance digestion of milk protein.
6. State one function of hydrochloric acid produced in stomach during digestion.

4. (a) The diagram below represents an organelle

1. Name structure A and D
2. Explain how the structure labeled B enhances the function of this organelle

(b) Other than skin, name other surfaces uses for gaseous exchange in adult frog.

(c) The diagram below represents blood clotting process.

(i)Name substance X and Y

(ii) Explain why people who are deficient of vitamin K bleed profusely after an injury.

5. (a) Study the diagram below and answer question that follows

1. Name the type of nutrition found in above plant.
2. Name the organism
3. Discuss the environmental importance of this type of feeding

(b) Name the forces involved in water movement up the plant.

6. (a) How could the body remove or destroy a bacterium that lands.

1. On cornea
2. On the hand
3. The bronchus
4. In the stomach.

(b) Explain why it is;

(i) Not healthy to sleep in a closed room with many potted plants.

(ii) Dangerous to sleep in a poorly ventilated room with charcoal burner on.

7.(a) The diagram below represents a bell jar experiment to demonstrate breathing;

1. Name structure represented by T, V, W and X.
2. Explain what happens when structure X is pulled in the direction shown by the arrow.

(b) State the products and by-products of anaerobic respiration in;

1. Plants cells
2. Animals’ cells.

8. (a) Explain how the following are adapted for their function;

1. Cuticle
2. The guard cell
3. Palisade cell

(b) Explain the importance of converting most of glucose formed during the day to starch in plant leaf cell.

(c) Mention the products of photosynthesis.

9. (a) Define the following terms

1. Population
2. Community
3. Biotic factors
4. Abiotic factors
5. Ecosystem.

(b) Outline abiotic factors that influence distribution of organisms in an ecosystem

SECTION C. ANSWER QUESTION 10

10.(a) Explain mechanism of gaseous exchange in bony fish.

(b) describe factors affecting breathing rate.

THE PRESIDENT’S OFFICE MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

COMPETENCY BASED SECONDARY EXAMINATION SERIES

BIOLOGY TERMINAL EXAMINATION

FORM TWO-2022

Student’s Name: ………………………………………………………..

Time: 2:30 Hours  Date: JULY 2022

 INSTRUCTIONS:

• This paper consists of section A, B and C
• Answer all questions in section A, B and C
• All answer must be written in the spaces provided
• All writings must be in blue or black ink EXCEPT for the diagrams which must be in pencil

SECTION A (15 MARKS)

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

(i) Which organisms belongs to kingdom Plantae?

1. Fern and amoeba
2. Moss and mucor
3. Liverwort and yeast
4. Fern and moss

(ii) Unexpected event which can cause injury and sometimes death is called

1. Accident
2. Emergency
3. Outbreak.
4. Disaster.

(iii) People with talking behavior while eating are considered to have

1. Bad manner.
2. Table manner.
3. Talkative manner
4. Chatty manner.

(iv) Medical waste is described as

1. Biohazardous
2. Reusable
3. Biodegradable
4. Recyclable

(v) When giving first aid to a snakebite victim, you should not

1. Cut the wound
2. Calm them down
3. Remove jewelers from the bitten limb
4. Lower the bitten area

(vi) The first step in the scientific method is

1. Experimentation
2. Asking questions
3. Identifying the problem
4. Formulating hypothesis

(vii) The young leaves of ferns are called

1. Rhizoids
2. Thallus
3. Sori
4. Fronds

(viii) The following disease are communicable except.

1. Cholera
2. Kwashiorkor
3. Tuberculosis
4. Malaria

(ix) Which are two main branches of biology?

1. Mamamology and immunology
2. Cytology and ethnology
3. Botany and zoology
4. Zoology and cytology

(x) In human being, the brain is an example

1. Tissue
2. An organ
3. Organelles
4. System

2. For each of items i - v, choose the correct answer among the given alternative in list B, and write its letter in the table below.

 SECTION B (70 MARKS)

Short answer questions

3. Morison accidentally fallen in the class and was found that he was not breathing. The students help him to recover from breathing.

1. What is the name of the process done by students? -------------------------------------------------
2. What were the reasons of giving the process above? Give four reasons
   1. ------------------------------------------------------------------------------------------
   2. -----------------------------------------------------------------------------------------
   3. ------------------------------------------------------------------------------------------
   4. ------------------------------------------------------------------------------------------
3. What were the qualities of the student who gave the process?
   1. ----------------------------------------------------------------------------------------------------------
   2. ----------------------------------------------------------------------------------------------------------
   3. ----------------------------------------------------------------------------------------------------------

4. (a) What do you understand by the following term
   1. Classification
   2. Taxonomy

(b) Write 4 differences between natural and artificial systems of classification.

5. (a) Zalina is a form one student who wants to make artificial animal cell which perform

the functions of plant cell, what kind of modification she has to make?

(b) (i)Arrange the following term in a sequential order from simple to complexity of cell Differentiation. Tissue, organelle, organism, organ, cell and system.

(ii) b) Mention four differences between Tongue cells and Leaf cells.

(c) Draw the diagram of animal cell and on it;

1. Label the part which controls all activity of the cell
2. Label the part which protects the structures inside the cell

6. (a) Define the term” biology laboratory”

(b) List four features of a good biology laboratory

(c) Why most biology laboratory apparatus is made up glass? Give two points

7. (a)What is Nutrition?

(b)With one example outline phyla of kingdom fungi

(c)Outline any four (4) advantages of kingdom fungi

8. (a) Define the following;

1. Immunity
2. Disease
3. Health

2. Write down five factors for lowering body immunity.

9. (a) Differentiate the following;

1. Nutrition and digestion
2. Ingestion and egestion
3. Absorption and assimilation
4. Homodont and heterodont
5. Parasitism and commensalism

10. Briefly explain five effects of poor waste disposal.

SECTION C (15 MARKS)

(Essay questions)

Answer the following question in this section.

11. Biology is not only about botany and zoology. Discuss this statement.

THE PRESIDENT’S OFFICE

MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

COMPETENCY BASED SECONDARY EXAMINATION SERIES

BIOLOGY TERMINAL EXAMINATION

FORM TWO-2022

Time: 2: 30Hours

INSTRUCTIONS.

1. This paper consists of section A, B and C with a total of 11 questions
2. Answer all questions in section A and B and ONE question from section C.
3. Section A carries 30 marks, section B 50 marks and section C 20  Marks
4. All answers should be written in the spaces provided.
5. All communication devices, calculators and any unauthorized material are not allowed in examination room.
6. Write your number on every page of your answer booklet.

 SECTION A (30 Marks)

 Answer All questions in this section.

1. Choose the best alternative from the choices given and write it on the spaces provided.

1.            The following are examples of water – borne diseases:

1.   Malaria and bilharzia.
2.   Yellow fever and typhoid
3.    Diarrhoea and malaria.
4.   Cholera and plague.
5.   Cholera and typhoid

(ii) One of the distinctive features o f kingdom fungi is possession of:

1. Plasma membrane
2. Cytoplasma
3. Chitin materials
4. Cell membrane
5. Cellulose materials.

(iii) A grasshopper ventilates its gaseous exchange surfaces by:

1. Moving the diaphragm
2. Beating of cilia
3. Rhythmic body movement
4. Opening of spiracles
5. Moving its rib cage.

(iv) The taxonomic category of organisms belonging to the same class but not to the same family is?

1. Species
2. Genus
3. Order
4. Phylum
5. Kingdom.

(v) 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
5. Vitamin B.

(vi) Night blindness in human body is avoided by eating? 

1. Oranges
2. Carrot
3. Red meat
4. Green vegetables
5. Chicken

(vii) A blood vessel which conveys deoxygenated blood away from the heart is called?

1. Capillaries
2. Artery
3. Veins
4. Pulmonary vein
5. Pulmonary artery.

(viii) Which of the following structure is a site of respiration?

1. Chloroplast
2. Ribosome
3. Nuclear
4. Nucleic acid
5. Mitochondria.

(ix) The structures found in bacteria are:

1. Plasmid, flagella and cilia
2. Cytoplasm, cilia and plastids
3. Cell wall, plasmid and flagella
4. Cell membrane, flagella and hairs
5. Plasmid, capsule and cilia.

(x) The by – products in photosynthesis process are:

1. Carbohydrate and water
2. Carbon dioxide and oxygen
3. Oxygen and water
4. Carbohydrate and carbon dioxide 
5. Oxygen and air.

2. Matching items questions.

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

(i)The sticky fluid in the nose that helps to trap dust is known as . . . . . . . . . . . . . . 

(ii)The muscles that are found between the ribs are called . . . . . . . . . . . . . . 

(iii)The process of taking in air into the lungs is called . . . . . . . . . . . . . . 

(iv)The breakdown of food in the absence of oxygen to release energy is known

as . . . . . . . . . . . . . . 

(v)A structure that closes the opening of the trachea to prevent food from entering it during swallowing is known as . . . . . . . . . . . . . . 

5. Study the digestive system of normal below and answer questions that follow:

1. Name parts labeled A, B, C, D, E and F.
2. Name two enzymes secreted by part labeled F.
3. State role of one of enzymes secreted at part labeled F.

6. (a) (i) What is a tissue

          (ii) Name three animal and plant tissues.

    (b) State the structural differences between cell wall and a cell membrane.

    (c) Describe the function of blood plasma.

7. (a) Explain the function of the following parts of compound microscope.

1. Stage
2. Eyepiece

      (b) Name four (4) human diseases caused by viruses.

      (c) Mention four ways of helping a person who has been bitten by a snake.

8. (a) What is meant by the following terms.

1.              Digestion
2. Malnutrition
3. Balanced diet
4. Nutritional disorder.

   (c) Explain why;

1.              One can swallow food while upside down?
2.                      Digestion of starch does not continue in the stomach?
3.                    Food in duodenum is alkaline
4.                    One is advised to eat roughage although they do not have any nutritional                 value.

9. (a) Draw a large labeled diagram of villus found in the digestive system.

    (b) Name digestive juice produced by the liver and state the content of that juice.

    (c) Differentiate between the following terms.

1. Breathing and respiration
2. Inhalation and exhalation

SECTION C:

10. Write an essay on malaria using guidelines below.

1. Causes
2. Transmission
3. Signs and symptoms
4. Ways of prevention
5. Treatment of the diseases.

11. Discus the advantage and disadvantage of artificial and natural classification.

FORM TWO BIOLOGY EXAM SERIES 58  

FORM TWO BIOLOGY EXAM SERIES 58  

FORM TWO BIOLOGY EXAM SERIES 11  

FORM TWO BIOLOGY EXAM SERIES 11  

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