FORM TWO BIOLOGY ANNUAL EXAMS
PRESIDENT’S OFFICE, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT
SECONDARY EXAMINATION SERIES
PRE-NATIONAL EXAMINATION-2025
FORM TWO BIOLOGY EXAMINATION
TIME: 3 HOURS
INSTRUCTIONS
1. This paper consists of  three sections A, B and C .
2. Answer  all questions in Sections A and B  and  one (1) question in Section C .
3. Write all answers in the answer booklet provided.
4. All diagrams must be neat and labeled clearly.
5. Use scenarios provided carefully before answering the questions.
SECTION A (15 Marks)
Q1. Multiple Choice Questions (10 marks) For each of the following items (i)–(x), choose the correct answer and write its letter.
(i) A group of students were preparing onion cells under a microscope. To make the  cells more visible, their teacher advised them to add: A. Water B. Alcohol C. Iodine solution D. Salt solution E. Glucose solution
(ii) After jogging for 20 minutes, Asha started breathing heavily. This was to: A. Reduce blood pressure B. Remove excess oxygen C. Supply more oxygen and remove carbon dioxide D. Stop sweating E. Strengthen the heart muscles
(iii) In a case of food poisoning, the most likely organisms involved are: A. Viruses B. Bacteria
C. Fungi D. Protozoa E. Worms
(iv) A farmer noticed his maize leaves turning yellow. This may indicate deficiency of: A. Iron B. Nitrogen C. Calcium D. Potassium E. Sulphur
(v) Which of the following is a correct order in the biological classification hierarchy? A. Class → Kingdom → Order → Family → Genus → Species B. Kingdom → Class → Family → Genus → Species C. Kingdom → Phylum → Class → Order → Family → Genus → Species D. Phylum → Kingdom → Order → Family → Class → Species E. Species → Genus → Order → Family → Phylum → Kingdom
(vi) During first aid, the first thing to do for a person bleeding from a deep cut is to: A. Give painkillers B. Wash with soap only C. Apply pressure to stop bleeding D. Take to hospital immediately E. Give water to drink
(vii) Which blood component is responsible for body defense against pathogens? A. Platelets B. Plasma C. Red blood cells D. White blood cells E. Haemoglobin
(viii) A mango left on the table for two weeks begins to rot. This is mainly caused by: A. Bacteria and fungi B. Enzymes only C. Water loss only D. Insects only E. Lack of sunlight
(ix) Which structure in a plant is directly involved in gaseous exchange? A. Xylem
B. Phloem C. Stomata D. Cuticle E. Root hairs
(x) HIV attacks mainly: A. Red blood cells B. White blood cells C. Platelets D. Plasma E. Enzymes
Q2. Matching Items (5 marks)
Match the process of digestion in  List A  with the correct part where it occurs in  List B .  Write the letter of the correct response.


  SECTION B (70 Marks)
3.  A student accidentally inhaled smoke from a burning heap of rubbish and started  coughing continuously. (a) State two harmful substances found in smoke. (2 marks) (b) Explain why the student coughed after inhaling smoke. (3 marks) (c) List three ways of reducing air pollution in towns. (3 marks) (d) Suggest two diseases that can result from long-term exposure to smoke. (2 marks)
4.  In a school laboratory, students were asked to identify safety rules during  experiments. (a) List four important safety rules to follow when using chemicals. (4 marks)
(b) State two first aid measures for a student who spilled concentrated acid on the hand.  (2 marks) (c) Mention two items found in a first aid kit and state their uses. (4 marks)
5.  During a village campaign on malaria prevention, a health officer explained the life  cycle of  Plasmodium . (a) Name the vector responsible for malaria transmission. (2 marks) (b) State two ways of preventing malaria at community level. (2 marks) (c) Mention three symptoms of malaria. (3 marks) (d) Explain why immunity is important in fighting malaria. (3 marks)
6.  A farmer applied fertilizer on his tomato plants. After some weeks, the plants had big  leaves but very few flowers. (a) Which type of nutrient was excessive in the fertilizer? (2 marks) (b) Why did the plants fail to produce enough flowers? (2 marks) (c) State three methods of replenishing soil fertility naturally. (3 marks) (d) Give three roles of potassium in plants. (3 marks)
7.  A Form Two class was studying respiration in humans. One student ran quickly  around the field and then measured her breathing rate. (a) Why did the breathing rate increase after running? (3 marks) (b) Differentiate between aerobic and anaerobic respiration. (4 marks) (c) Give three uses of energy released during respiration. (3 marks)
8.  A Form Two group was investigating transport in plants using a potted plant kept in  sunlight. (a) Define transpiration. (2 marks) (b) Explain two advantages of transpiration to plants. (4 marks) (c) State two disadvantages of excessive transpiration. (2 marks) (d) Suggest two ways plants reduce water loss. (2 marks)
9.  During a biology trip, students observed mushrooms growing on a decaying log. (a) Which kingdom do mushrooms belong to? (2 marks) (b) State two ways in which fungi are useful to humans. (2 marks) (c) State two ways fungi are harmful to humans. (2 marks) (d) Explain why fungi are placed in their own kingdom and not in plants. (4 marks)
SECTION C (15 Marks)
10. Essay Question (15 marks) In many villages, people suffer from waterborne diseases. As a biology student, explain 
how proper food preservation, safe water storage, and balanced interaction of  organisms (balance of nature) can help reduce the spread of such diseases.

FORM TWO BIOLOGY EXAM SERIES 216  

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FORM TWO BIOLOGY EXAM SERIES 216  

THE PRESIDENT’S OFFICE

REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

SECONDARY SCHOOL EXAMINATION

BIOLOGY FORM TWO PRE NECTA EXAMINATIONS

-2025

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

i. Which feature helps to strengthen and support xylem vessels?

  1.               Thin, flexible cell walls
  2.                Thick cell walls with lignin
  3.               Presence of sieve plates
  4.               Presence of companion cells

 

ii. The component of blood responsible for carrying oxygen is:

  1.               Plasma
  2.                Red blood cells
  3.               White blood cells
  4.               Platelets

iii. A food sample which was tested by boiling with Benedict's or Fehling's solution gave an orange precipitate. This showed that the food sample contained

  1.                  reducing sugar 
  2.                   fats
  3.                  protein 
  4.                  sucrose.

 

iv. The role of light in photosynthesis is to

  1.               Form ATP
  2.                Form ADP
  3.               Cause photolysis
  4.               Form ATP and cause photolysis

v. Movement of food down the oesophagus is aided by;

  1.               Gravity
  2.                Peristalysis
  3.               Breathing
  4.               Swallowing

 

vi. The type of respiration that occurs in the absence of oxygen is:

  1.               Aerobic respiration
  2.                Anaerobic respiration
  3.               Cellular respiration
  4.               External respiration

vii. Which of the following does not support the growth of micro-organism?

  1.               Sugar
  2.                Moisture
  3.               Oxygen
  4.               Warmth

 

viii. Which of the following apply in a balanced grassland ecosystem?

  1.                There are more consumers than producers.
  2.                 Decomposers act on producers only.
  3.                 Producers and consumers are usually in equal numbers.
  4.                Producers are more numerous than consumers.

 

ix. Which of the following is a disease caused by a protozoan?

  1.               Amoebic dysentery
  2.                Malaria
  3.               Sleeping sickness
  4.               All of the above

 

x. The site of protein synthesis within a cell is the:

  1.      Ribosome
  2.      Cell membrane
  3.      Chloroplast
  4.     Lysosome

2. Match the parts of the respiratory system with their functions:

LIST A

LIST B
  1.  Alveoli
  2.  Trachea
  3.  Diaphragm
  4.  Nasal cavity
  5.  Bronchi

 
  1.               Warms and humidifies air
  2.                Main site of gas exchange
  3.                Windpipe
  4.               Muscle that helps in breathing
  5.                 Tubes that branch from the trachea

SECTION B

3. a) Name the different shapes of bacteria

b) List any four advantages of bacteria

c) Outline the harmful effects of  viruses.

4. (a)Differentiate between transpiration and guttation.

   (b)Explain the significance of transpiration in plants.

5.   (a) Draw and label the structure of mushroom

      (b) Give five economic importance of Kingdom fungi

6. Briefly explain the following methods of food preservation. In each give an example of food preserved.

a)  Boiling

b)  Smoking

c)  Salting 

d) Pickling

e) Drying

 

7. Describe the process of gaseous exchange in plants through stomata.

 

8. a) Briefly explain how the food moves down the alimentary canal

   

b) Explain the adaptations of the stomach in the process of digestion

   

c) Mention the role the following in digestion

i)  Hydrochloric acid

ii)  Pepsin

iii) Rennin

iv)  Mucus.

9. What is the role of the lymphatic system in maintaining fluid balance?

SECTION C

10. Describe the process of blood clotting.

 

 

 

 

 

FORM TWO BIOLOGY EXAM SERIES 207  

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FORM TWO BIOLOGY EXAM SERIES 207  


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

COMPETENCY BASED SECONDARY EXAMINATION SERIES

BIOLOGY FORM TWO

TIME 2:30 Hours                                                                                               Nov 2022              

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. 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 drawings which must be in pencil. 

5. Cellular phones and any unauthorized materials are not allowed in the examination room. 

6. Write your Examination Number on the top right on every page. 

 

SECTION A: (15 MARKS)

Answer all questions in this section

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

(i)A form four student who was in laboratory using light microscope, complained that his microscope was not functioning properly since the specimen under observation was not seen clearly. Which part among the following was not functioning properly?

A.    Arm

B.    Body tube

C.    Mirror

D.    Objective lens

E.     Revolving nose piece

(ii) A relationship between living organisms where one organism benefits and the other does not benefit and is not harmed is known as:-image

A. Parasitism B. Commensalism

C.    Mutualism

D.    Neutralism

(iii) When giving first aid to a person stung by a bee, the sting should be removed by scraping gently using:-

A.    Blunt objects

B.     Fingers

C.     Sharp objects 

D. Syringes

(iv)  Mr Maleko has been suffering from Goitre, which nutrient is missing in his diet?

A.    Carbohydrate

B.     Vitamin E

C.     Vitamin C 

D.      Iodine

(v) As a form two student, how can you assist a form one student on picking one of the most efficient way of preventing STI's among the following:-

A.    Protected sex

B.     Take a balance diet

C.     Abstain from sex

D.    Avoid sharing of razor blades

(vi)  The kingdom in which its members (organisms) store food as glycogen and reproduce using spores is

A. Kingdom Plantae 

B. Kingdom Fungiimage

C.    Kingdom Monera

D.    Kingdom Protoctists

(vii) Which part of the plant cell contain non — living component:-

A.    Cell wall

B.    Cell membrane

C.    Nucleus

D.    Chloroplast

(viii) The process by which respiratory gases diffuse in and out of the respiratory   imagesurfaces is called:-

A.    Inhalation

B.     Exhalation

C.     Respiration

D.    Gaseous exchange

(ix) Amoeba is a causative agent of a gastric disease called amoebic dysentery, this causative agent is an organism that belongs to which kingdom among the following:

A. Animalia

B. Plantae 

C. Protoctista 

D. Monera

(x) Which of the following is responsible for protecting the body against pathogens?

A.    Leucocytes

B.     Thrombocytes

C.     Erythrocytes

D.    Lymph

2.  Match the phrases in list A with the responses in list B by writing the letter of the correct response in list B below the corresponding phrase number of list A in the table provided.

LIST A

LIST B
  1.         An important nutrient for body growth and repair of worn out cells and tissue
  2.      An or an which stores bile
  3.    An organic nutrient that an organism requires in small quantities.
  4.    Responsible for absorption of digested food nutrients .
  5.       A substance that is important in the diet that helps in the smooth movement of food in the digestive system
  1. Micronutrient
  2. Microvillus
  3. Trypsin.
  4. Roughages.
  5. Liver
  6. Carbohydrate
  7. Protein
  8. Gall bladder
  9. Nutrients
  10. Stomach.

SECTION B: (70 MARKS)

Answer all questions from this section

3.  (a) Give the meaning of the following terms

(i)   Biology

(ii)Classification...

(b)What is studied about, in the following branches of biology?

(i)          Microbiology

(ii)        Ecology

(iii)     Entomology

(iv)     Mycology

(c)  Name the two parts that make up the scientific names of living organisms

4.  (a) Differentiate between photosynthesis and respiration

 (b)Name two factors which affect the rate of respiration

(c)  Mention two raw materials needed for photosynthesis to take place

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

(i) Suggest the common name of the organism that grow on the bread surface

(ii)        Name the kingdom in which the observed organism belongs

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

 

 (iv) Suggest one advantage of the members of the kingdom you mentioned in (ii) above

5.  (a) Where can you see the following safety signs in real life situations

(i)     Slipery floor

(ii)   Flammable

(iii)  High voltage .

(iv)Strong radiation . 

(v) Biohazard .

(b)The steps in the scientific methods in each of the following situations are not in the imagecorrect order. Re - arrange them correctly basing on the knowledge of scientific method

(i)          The laboratory technician diagnose malaria parasite in John's blood

(ii)        The doctor orders John's body temperature, blood and urine samples for observation in the laboratory

(iii)     The doctor asks John several questions about how he feels

(iv)     The doctor confirms that John has malaria and prescribes medicine for him

(v)        John is not feeling well, he goes to see a medical doctor at a nearby hospital

6.  Study the following diagram and then answer the questions that follow:

image

Figure 1

(a)   (i) What is the name of the above diagram?

(ii)     Label the parts marked A, B, C, D

(iii)   Write down two differences between arteries and Veins

Arteries

Veins

 

 

 

(b)   Give one function for each of the following blood cells (i) Red blood cells .

(ii)     White blood cells...

(iii)   Blood platelets

7. (a) Explain the following facts with regard to ecosystem

(i)     Why food web is said to be interconnection of food chain? .

(ii)   Competition is important in an ecosystem........

(iii)   Ecological pyramid is pointed at the top and wide at the bottom....

(b) Construct a simple food web from the following organisms:

(Mucor, leopard, zebra, deer, lion and shrubs)

image 8. (a) Identify the process by which food is broken down into a simple form that can be used by living organisms.........

(b)Why are cows and goats called ruminants?

(c)  How can you differentiate the stomach of a cow from that of human being?

(d)Jacob complains of having a painful burning sensational around the oesophagus whenever he eats spicy food. He also has a problem of passing out very hard stool (i) Suggest the possible disorders he is facing (a)..

(ii) What would you advise him in order to alleviate the problem

(a)..

(b).....

9. (a) Khadija is a teenager girl, her parents are complaining on her that, she is dirty and has bad dressing code and bad life style in general. As a form two student identify the kind imageof behaviour and hygiene that Khadija is displaying/ showing 

(i) Behaviour............ ...  

(ii) Hygiene...

(b)  Name two diseases that may be caused by lack of personal hygiene during puberty

(c)   State four bad habits you have seen in your age — mates at home or school

 

SECTION C: (15 MARKS)

10. Corona is a wide spread problem in the world. Countries have attempted to eradicate the disease but they have not been very successful. As a form two biology student, educate your community about corona disease using the following guidelines:

(a)   Causative agent

(b)  Made of transmission

(c)   Symptoms (04 points)

(d)  Side effects (02 points)

(e)   Prevention measures (04 points)

 

FORM TWO BIOLOGY EXAM SERIES 122  

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FORM TWO BIOLOGY EXAM SERIES 122  

THE PRESIDENT’S OFFICE

MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

COMPETENCE BASED  SECONDARY EXAMINATION SERIES

BIOLOGY ANNUAL EXAMINATIONS

FORM TWO-2021

       033                                                

TIME: 2:30 HOURS                                                       Nov, 2021

image

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.

FOR EXAMINER’S USE ONLY

QUESTION

NUMBER

SCORE

EXAMINER’S INITIALS

1

2

3

4

5

6

7

8

9

10

11

TOTAL

CHECKER’S INITIALS

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?

A.Trochomoniasis

B.Candidiasis 

C. Vaginosis

D.Cholera.

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

A.Vitamin A

B.Vitamin C

C.Vitamin D 

D. Vitamin K.

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

A.Avoid dirtiness

B.Prevent student from entering

C.Reduce accidents

D.Reduce the use of chemical in the lab.

(iv)Plants are said to be vascular if: A. They contain phloem only

B.They contain xylem only

C.They contain cambium

D.They contain phloem and xylem.

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

A.Community

B.Ecology

C.Ecosystem 

D. Population.

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

A.Control of body temperature

B.Use of lungs

C.Number of limbs

D.What covers their skins.

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

A.Serum

B.Immunity

C.Immunization

D.Vaccine.

(viii)The feeding relationship represented by the sequence 

Green plants?Grasshopper?Frog is called:

A.Food web

B.Food chain

C.Predation 

D. Community.

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

A.Pulmonary vein

B.Pulmonary artery

C.Aorta 

D. Venacava.

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

             A.   A state of physical, sexual and mental fitness

B.Being physically, mentally and socially fit

C.A state of family well being

D.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.

LIST A

LIST B

(i)The upper chambers of the heart

(ii)Occurs when the ventricles relax to allow blood to flow in

(iii)Occurs when the ventricles contract to allow the blood flow out of the heart

(iv)Prevents backward flow of blood to the left auricle (v) Initiates the heart beat

A.Pulse maker

B.Ventricles

C.Ventricles

D.Auricles

E.Bicuspid valve

F.Pulmonary artery

G.Diastolic beat

H.Systolic beat

Answers:

LIST A

(i)

(ii)

(iii)

(iv)

(v)

LIST B

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:

(i)______________________________________________________________

(ii)______________________________________________________________

(iii)______________________________________________________________

(iv)_______________________________________________________________

(v)_______________________________________________________________

(vi)_______________________________________________________________

(vii)_______________________________________________________________

       (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:

image 

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

_____________________________________________________________________

_____________________________________________________________________ _____________________________________________________________________

_____________________________________________________________________

(b)Name parts labelled X, Y and Z

X___________________________________________________________________

Y___________________________________________________________________ Z ___________________________________________________________________

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

(i)_______________________________________________________________

_______________________________________________________________

(ii)_______________________________________________________________

_______________________________________________________________

(iii)_______________________________________________________________ _______________________________________________________________

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

image

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

Ris: _________________________________________________________

Sis: _________________________________________________________ 

(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

Diffusion

Osmosis

(i)

(ii)

(iii)

(iv)

9.(a)   Define natural environment

_____________________________________________________________________ _____________________________________________________________________

_____________________________________________________________________

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

(i)_______________________________________________________________

                         _______________________________________________________________

(ii)_______________________________________________________________

                         _______________________________________________________________

(iii)_______________________________________________________________

_______________________________________________________________

(iv)_______________________________________________________________

_______________________________________________________________

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

___________________________________________________________________________

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FORM TWO BIOLOGY EXAM SERIES 72  

MARKING SCHEME | DOWNLOAD |

FORM TWO BIOLOGY EXAM SERIES 72  

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