11. Which of the following structures would carry out cellular respiration? A
- A. germinating seed
- B. decolorised leaf
- C. dry leaf
- D. boiled cowpea
Reveal Answer
12. Which of the following is NOT an excretory product of animals?
- A. carbondioxide
- B. urea
- C. sweat
- D. oxygen
Reveal Answer
13. An example of homeostasis in living organisms is
- A. cooling effect resulting from evaporation of water from the body surface
- B. root hairs of a plant growing towards the source of light
- C. changing of the body colour of chameleon to match the colour of the foliage on which it is resting
- D. the release of phosphorus into the phloem of a plant growing in a phosphorus-deficient soil
Reveal Answer
14. Ultrafiltration in the kidney takes place in the
- A. Renal vein
- B. Medulla
- C. Loop of Henle
- D. Bowman’s Capsule
Reveal Answer
15. The thyroid gland is found at the base of the
- A. Midbrain
- B. Kidney
- C. Neck
- D. Liver
Reveal Answer
16. Which of the following statements about the response of neurones to stimulus is correct?
- A. Neurons respond to stimulus of any strength
- B. Neurons respond to all stimuli applied in rapid succession
- C. Neurons respond more rapidly during the absolute refraction period
- D. Intensity of stimulus must reach a threshold value before the neurons can be excited
Reveal Answer
17. Which of the following practices may lead to infection of the eye? Use of
- A. contact lenses
- B. convex lenses
- C. biconcave lenses
- D. concave lenses
Reveal Answer
18. The structures for gaseous exchange in breathing roots are
- A. stomata
- B. lenticels
- C. cuticle
- D. mitochondria
Reveal Answer
19. 
The diagram above is an illustration of the life cycle of an insect. The adult fly in this cycle is called
- A. Housefly
- B. Butterfly
- C. Cockroach
- D. Mosquito
Reveal Answer
20. 
In the diagram above, the larva is also known as
- A. Nymph
- B. Caterpillar
- C. Maggot
- D. Chrysalis
Reveal Answer
