CANDIDATE NAME: _______________________________ SCHOOL: _____________
2022 CHIFUNGA CLUSTER JCE MOCK EXAMINATIONS
BIOLOGY
(100 Marks)
Wednesday, 25 May Subject Number: J022
Time Allowed: 2 hours
8:00 – 10:00 am
Instructions
1. This paper contains 10 printed pages. Question Tick Do not write in
Please check. Number Questions these columns
21 – 31 if
2. This paper has three sections A, B and C.
answered
1 - 20
3. Follow instructions for each section
21
carefully. 22
23
4. In the table provided on this page, tick
24
against the question number you have
25
answered.
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5. Hand in your question paper to the 27
invigilator when time is called to stop 28
writing. 29
IMPORTANT 30
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6. Make sure you write your Candidate
Name in the spaces provided on all the
pages of this paper before you start answering the questions.
© 2022 CHIFUNGA CLUSTER TURN OVER
Page 1 of 12
CANDIDATE NAME: _______________________________ SCHOOL: _____________
Section A (20 marks)
Multiple Choice
Answer all questions in this section
Instructions
Encircle the letter corresponding to the correct answer.
1. An individual’s reaction towards a
change in an environment is
called________.
A. stimulus
B. nervous system
C. a reaction
D. response
2. Which of the following diseases is an
example of a sexually transmitted diseases 3. What was the stimulus in the
investigation?
A. AIDS
B. malaria A. light
C. sleeping sickness B. oxygen
D. goitre
C. temperature
Figure 1 is a diagram of a choice chamber
D. moisture
which was used in an investigation on
response. Woodlice that were put into the 4. The dependent variable in the
chamber moved to the damp side. Use it to experiment is
answer question 3 and 4
A. movement of woodlice to the damp
area
B. the temperature of air inside the
chamber
C. death of some woodlice
D. number of woodlice
Page 2 of 12
CANDIDATE NAME: _______________________________ SCHOOL: _____________
5. Which of the following worms has two D. ileum
host
8. Which of the following digestive juice
A. roundworms is secreted in part marked L?
B. threadworms A. saliva
C. tapeworms B. pancreatic juice
D. leeches C. gastric juice
6. Which of the following is an example of D. intestinal juice
a ball and socket joint
9. The following are conditions necessary
A. ankle joint for the growth of micro-organisms except
B. skull joint A. temperature
C. shoulder joint B. air pressure
D. knee joint C. PH
Figure 2 shows part of the human D. nutrient agar
digestive system. Use it to answer
10. Why is fresh leaf put in boiling alcohol
questions 7 and 8.
when testing it for starch?
A. to kill the leaf cells
B. to make the leaf soft
C. to remove chlorophyll
D. to make the leaf absorb iodine
M 11. Which of the following is a cause for
Figure 2 cholera?
A. Shigella
7. What name is given to part marked M? B. Vibrio cholera
A. anal sphincter C. Samonella typhi
B. duodenum D. Candida
C. pyloric sphincter
Page 3 of 12
CANDIDATE NAME: _______________________________ SCHOOL: _____________
12. The arrangement of veins in a leaf is A. deafness
called
B. short-sight
A. arboreal
C. long- sight
B. reticulate
D. cataract
C. venation
A. 1 only
D. classification
B. 1 and 2
13. Which of the following is a correct
C. 2 and 3
food chain
D. 3 and 4
A. grass → grasshopper ← chicken
17. The process of taking food into the
B. grasshopper → grass → chicken
body through the mouth is called
C. grass→ grasshopper → chicken
A. digestion
D. chicken → grasshopper → grass
B. ingestion
14. A place where two or more bones meet
C. egestion
is called
D. assimilation
A. a joint
Figure 3 is a diagram of a unicellular
B. a muscle
organism. Use it to answer questions 18
C. dislocation and 19.
D. a fracture
15. Which of the following is a main
product of photosynthesis
A. oxygen
B. carbon dioxide
C. glucose
D. sunlight
18. To which group of organisms does it
16. The following are defects of the eye belong?
except
Page 4 of 12
CANDIDATE NAME: _______________________________ SCHOOL: _____________
A. fungi B. investigations
B. protozoa C. skills
C. virus D. data
D. algae
19. What name is given to the locomotory
structures of the organism?
A. flagellum
B. hairs
C. pseudopodia
D. cilia
20. The way of finding out the truth about
something is called
A. experiments
SECTION B (50 marks)
Short answer questions
Answer all questions in this section
21. a. Define the term “variable”
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(1 mark)
b. State two importance of each of the following stages of scientific investigations:
(ⅰ) formulating a hypothesis
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CANDIDATE NAME: _______________________________ SCHOOL: _____________
(2 marks)
(ⅱ) control of variables
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c. Why is it important to repeat an investigation?
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22. Below is a table showing thickness of the vessel walls, diameter and letters representing
blood vessels. Use it to answer the questions that follow.
Thickness of the vessel Diameter of the vessels Name of blood vessels
walls (mm)
1.5 30.0 X
0.001 0.004 Y
2.0 25.0 Z
a. Identify the blood vessel
X : ………………………………………………………………………………………………
Y : ………………………………………………………………………………………………
Z : ………………………………………………………………………………………………
(3 marks)
b. Explain your answer in 22 (a) above.
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c. Which blood vessel carries blood containing oxygen?
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d. Which blood vessel carries blood at a lowest pressure?
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Page 6 of 12
CANDIDATE NAME: _______________________________ SCHOOL: _____________
23. Using biceps and triceps muscles as examples, describe how antagonistic muscles work.
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24. Below is a diagram showing a micro-organism. Use it to answer the questions that follow
a. Identify the micro-organism.
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b. Give one mode of reproduction for the micro-organism.
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c. List down three uses of micro-organism.
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25. Figure 4 shows diagrams of five different types of leaves labelled A, B, C, D and E. Use
the diagrams to answer the questions that follow
Page 7 of 12
CANDIDATE NAME: _______________________________ SCHOOL: _____________
a. State three differences between diagrams A and B.
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b. Use the diagrams above to construct a dichotomous key.
26. Describe one home-made treatment of diarrhoeal diseases.
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Page 8 of 12
CANDIDATE NAME: _______________________________ SCHOOL: _____________
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27a. Define a balanced diet.
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b. Give two diseases a person would suffer from if the diet is not balanced.
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c.Describe one way of preventing each of the diseases mentioned in 27 (b) above.
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28. Figure 5 shows some types of worms. Use it to answer the questions that follow.
a. Identify worms U and W.
U : ……………………………………………………………………………………..(1 mark)
W : ……………………………………………………………………………………(1 mark)
b. State any three signs of an infection caused by U.
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CANDIDATE NAME: _______________________________ SCHOOL: _____________
c. How does W obtain its food?
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SECTION C (30 marks)
ESSAYS
Answer all questions in this section.
29. Describe five functions of blood plasma.
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Page 10 of 12
CANDIDATE NAME: _______________________________ SCHOOL: _____________
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30. Describe an experiment that can be conducted to show the effect of nitrogen on maize
seedlings. In your essay, include procedures, expected results and conclusion.
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CANDIDATE NAME: _______________________________ SCHOOL: _____________
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31. Describe five ways of preventing diarrhoeal diseases.
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END OF QUESTION PAPER
NB: This paper contains 12 printed pages.
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