CSEC Biology Practice Questions

What CSEC Biology practice questions teach you

Past-paper-style questions help students understand how examiners test important syllabus concepts. Consistent multiple-choice practice improves accuracy, speed and confidence before the CSEC examination.

Instead of simply reading answers, practice with explanations helps students understand why an option is correct and why the alternatives are not.

CSEC Biology CSEC Practice Questions

Browse questions based on common CSEC formats. Select a question to review its answer options.

1. Question 1 — Which term best describes the study of living organisms and their interactions with the environment?
2. Question 2 — Which characteristic is common to all living organisms?
3. Question 3 — A virus is considered non-living mainly because it
4. Question 4 — Which structure controls the activities of a cell?
5. Question 5 — Which substance passes most easily through a partially permeable membrane?
6. Question 6 — The movement of water molecules through a semi-permeable membrane is called
7. Question 7 — Which structure is present in plant cells but not in animal cells?
8. Question 8 — An enzyme works best at a particular temperature because
9. Question 9 — Which factor affects the rate of enzyme activity?
10. Question 10 — The main function of chlorophyll in green plants is to
11. Question 11 — Which raw material is required for photosynthesis?
12. Question 12 — A leaf is adapted for photosynthesis mainly because it
13. Question 13 — Which gas is released during photosynthesis?
14. Question 14 — Which type of tooth is adapted for cutting food?
15. Question 15 — Which type of nutrition is shown by green plants?
16. Question 16 — Digestion of proteins begins in the
17. Question 17 — Which organ absorbs digested food into the bloodstream?
18. Question 18 — Which process releases energy from food in living organisms?
19. Question 19 — Which blood vessel carries oxygenated blood from the lungs to the heart?
20. Question 20 — Which system is responsible for removing metabolic waste from the body?
21. Question 21 — Which process allows water vapour to be lost from the leaves of a plant?
22. Question 22 — Which structure mainly controls the rate of transpiration in plants?
23. Question 23 — Which tissue transports manufactured food in flowering plants?
24. Question 24 — Water and mineral salts are transported up the stem through the
25. Question 25 — Which organ removes urea from the bloodstream?
26. Question 26 — Which substance is excreted by the lungs?
27. Question 27 — Which structure produces pollen grains in a flowering plant?
28. Question 28 — Pollination is best described as the transfer of pollen from
29. Question 29 — Which type of reproduction results in genetic variation?
30. Question 30 — Which structure carries genetic information in a cell?

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