DURATION: 50 MINUTES (MULTIPLE CHOICE)
Instructions:
There are forty questions in this paper. Answer all questions. For each question there are four possible answers: A, B, C and D. Choose the one you consider correct by clicking on the option.
Answer all the questions in this paper
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Question 1 of 40
1. Question
The diagram shows a guava leaf with a magnification of x2.0.
If the length of the drawing is 8.0 cm, what is the length of the actual leaf?
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Question 2 of 40
2. Question
The diagram shows a plant cell.
Which two structures in this cell are not present in a red blood cell?
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Question 3 of 40
3. Question
What term is used to refer to a solution outside a cell whose concentration is lower than the concentration of a solution inside the living cell?
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Question 4 of 40
4. Question
The diagram shows the lock and key model of enzyme action.
Which number in the diagram represents the enzyme and the substrate?
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Enzyme = , Substrate =
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Question 5 of 40
5. Question
Which of the following correctly shows the deficiency diseases caused by lack of vitamin C, proteins and iron in the body?
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Answer =
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Question 6 of 40
6. Question
Which nutrient in the diet should be increased to keep a patient healthy after suffering from malaria for a long time?
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Question 7 of 40
7. Question
In plants, magnesium is an essential element for formation of …
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Question 8 of 40
8. Question
The diagram below shows the structure of Rhizopus.
Which labelled part releases digestive enzymes?
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Question 9 of 40
9. Question
The diagram shows the internal structure of a leaf.
Which part transports food nutrients?
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Question 10 of 40
10. Question
An organism has the following number of teeth in the mouth. Incisors — 4, canines — 8, premolars — 10 and molars — 12. What is the dental formula of the organism?
Type the correct option.
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Answer =
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Question 11 of 40
11. Question
The diagram below shows part of the digestive tract.
Which structure produces an alkaline juice needed in digestion?
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Question 12 of 40
12. Question
What changes cause expiration (breathing out) to take place?
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Answer =
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Question 13 of 40
13. Question
Which of the following can help to reduce the causes of stigma to people living with Hlv and AIDS?
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Question 14 of 40
14. Question
What type of immunity do babies obtain from the mother through breast milk?
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Question 15 of 40
15. Question
In an experiment to compare water loss, four similar leaves were treated with petroleum jelly (Vaseline) and left on a table for one hour.
Leaf 1 Upper surface only covered.
Leaf 2 Lower surface only covered.
Leaf 3 Both surfaces covered.
Leaf 4 Neither surface covered. Which of the leaves will wilt the slowest?
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Question 16 of 40
16. Question
Which vitamin is essential for clotting of blood?
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Question 17 of 40
17. Question
The diagram below shows the external view of the heart.
Which blood vessel is the pulmonary vein?
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Question 18 of 40
18. Question
Which substance cannot diffuse out of the blood into the dialysis fluid through the dialysis membrane in a kidney machine?
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Question 19 of 40
19. Question
A person is digging on a hot day without drinking any water. What effect will this have on the release of antidiuretic hormone (ADH) and the reabsorption of water in the body?
Type the letter of the correct option.
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Answer =
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Question 20 of 40
20. Question
Which of the following is one of the effects of over production of thyroxine?
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Question 21 of 40
21. Question
The diagram shows a reflex arc.
What are the numbered neurones called?
Sort elements
- Relay
- Sensory
- Motor
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1
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2
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3
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Question 22 of 40
22. Question
The diagram shows a longitudinal section of the human brain.
Which of the labelled part is responsible for controlling heart rate, reasoning and temperature?
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Question 23 of 40
23. Question
The diagram shows bones and muscles of the forelimb.
Which of the following correctly identifies joint P and what happens to muscle Q and R when the arm is straightened?
Sort elements
- Hinge
- Contract
- Relax
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Joint P
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Muscle Q
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Muscle R
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Question 24 of 40
24. Question
The diagram shows plant shoots growing towards a stimulus.
What type of tropic response is illustrated in the diagram?
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Question 25 of 40
25. Question
The diagram shows a longitudinal section of a seed.
What are the numbered parts?
Sort elements
- Plumule
- Radicle
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1
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2
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Question 26 of 40
26. Question
What type of asexual reproduction occurs in Rhizopus?
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Question 27 of 40
27. Question
Identify the type of natural vegetative reproduction illustrated by each of the following diagrams.
Sort elements
- Tuber
- Rhizome
- Bulb
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X
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Y
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Z
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Question 28 of 40
28. Question
Which feature in the flower below shows that it is wind pollinated?
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Question 29 of 40
29. Question
The diagram shows four different fruits
Which two fruits are dispersed by animals?
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Question 30 of 40
30. Question
Which of the following correctly states the functions of the cowper’s gland, prostate gland and seminal vesicle in a male reproductive system?
Sort elements
- Provides lubrication
- Provides nutrients to the sperms
- Activates sperms
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Cowper's gland
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Prostate gland
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Seminal vesicle
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Question 31 of 40
31. Question
The diagram shows part of a human female reproductive system after copulation.
What processes are taking place at points 1, 2 and 3?
Sort elements
- Ovulation
- Fertilisation
- Implantation
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1
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2
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3
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Question 32 of 40
32. Question
Vasectomy is one of the methods of preventing pregnancy. Which structure in the male reproductive system is cut during vasectomy?
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Question 33 of 40
33. Question
Which statement correctly describes events which take place during interphase of mitosis?
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Question 34 of 40
34. Question
In horses, red hair is dominant over brown hair. A breeder crosses a number of heterozygous red-haired horses. What percentage of the offspring will be red-haired?
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Question 35 of 40
35. Question
Which of the following diseases is caused by chromosomal mutation?
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Question 36 of 40
36. Question
The diagram shows an experimental set up to investigate one of the components of soil. The water level in the U-shaped tube moves up towards P.
What component of soil is being investigated in the experiment above?
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Question 37 of 40
37. Question
The diagram shows feeding relationships of organisms in an ecosystem.
Which organisms in the food web are herbivores?
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Question 38 of 40
38. Question
The diagram shows part of the nitrogen cycle.
At which point are nitrifying bacteria involved?
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Question 39 of 40
39. Question
What changes in the concentration of oxygen, number of fish and number of bacteria would occur when sewage is discharged into a river?
Sort elements
- Decreases
- Increases
- Decreases
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Concentration of oxygen
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Number of bacteria
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Number of fish
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Question 40 of 40
40. Question
Which of the following human activities help increase bio-diversity of organisms?
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