West African Examinations Council

WASSCE Biology · Paper 1 — Objective

Multiple-choice. This is the paper the CBT simulator practises.

38 exam-style questions, written to the West African Examinations Council format and free to read. The answers are here too — what they do not tell you is how many you would get right with a clock running.

Sit this paper timed All WASSCE Biology papers

1. Which process returns nitrogen from the soil to the atmosphere?

WASSCE Biology · Paper 1 — Objective

1. Which process returns nitrogen from the soil to the atmosphere?

2. The end product of carbohydrate digestion in humans is

3. Which structure is present in a plant cell but absent in an animal cell?

4. Anaerobic respiration in muscle produces:

5. The tissue that conducts manufactured food in a flowering plant is the:

6. In flowering plants, fertilisation results in the ovule becoming the:

7. Which of these is NOT an excretory organ in mammals?

8. The part of the cell that controls the movement of substances into and out of it is the:

9. The hormone that lowers blood glucose is:

10. The main site of gaseous exchange in a mammal is the:

11. Organisms that have a notochord at some stage of their life belong to the phylum:

12. In a food chain, green plants are described as

13. The theory of natural selection was proposed by:

14. The role of decomposers in an ecosystem is to:

15. A cross between two heterozygous tall plants (Tt × Tt) gives what phenotypic ratio?

16. Which vitamin deficiency causes scurvy?

17. Which vessel carries deoxygenated blood away from the heart?

18. In the food chain grass to grasshopper to lizard to hawk, the lizard is a:

19. The functional unit of the kidney is the:

20. Which is a feature of a wind-pollinated flower?

21. Which characteristic places an organism in the class Insecta?

22. Which disease is caused by a deficiency of iodine?

23. Which blood vessel carries oxygenated blood from the lungs to the heart?

24. A cross between two heterozygous tall plants (Tt) gives a phenotypic ratio of:

25. Protein synthesis in the cell takes place on the:

26. Bacteria that convert atmospheric nitrogen into nitrates in root nodules belong to the genus:

27. The type of joint found at the elbow is a:

28. Bile aids digestion by:

29. The greatest amount of energy in an ecosystem is found at the level of the:

30. Which enzyme in saliva begins the digestion of starch?

31. Which organelle is responsible for the release of energy from food in the cell?

32. Which gas is released during the light stage of photosynthesis?

33. The raw materials for photosynthesis are:

34. Which structure is present in a plant cell but absent in an animal cell?

35. The end product of carbohydrate digestion is:

36. A reflex action is best described as:

37. Malaria is transmitted by the bite of:

38. A man of blood group AB marries a woman of group O. Their children can be of group:

Reading these is not the same as sitting them.