Biology · Practice test

SS 3 practice test A

15 questions + 2 written tasks. Answers and your score show when you submit the whole test.

How it works: answer every question as you would in an exam, then submit to see the answers and your score. For written answers, compare yours with the model answer and mark it honestly: that is where the learning happens.

0 of 15 answered

1. Define respiration.
2. In a table, state four differences between gaseous exchange and aerobic respiration.
3. Explain the term residual air.
4. State two ways in which residual air is important to mammals.
5. Outline three activities that can result in oxygen debt.
6. Define excretion.
7. Name four excretory organs in humans and one waste product removed by each.
8. Name the excretory organ of (a) an insect (b) an earthworm.
9. List three characteristics of living organisms and briefly explain each.
10. Define photosynthesis and write its balanced overall equation.
11. List (i) four external factors and (ii) two internal factors that affect the rate of photosynthesis.
12. List the three products of the light-dependent stage of photosynthesis.
13. State the importance of each product named in question 12.
14. Explain why there are no green plants at the lower depths of some lakes.
15. Name one organism that shows both plant and animal features.

You can change any answer until you submit.

Written tasks

Not part of the score above. Write your answer here or on paper, then you, a parent or a teacher can mark it with the marking guide.

1. Describe the structure of a kidney nephron and explain how urine is formed. (9 marks)
2. Soil erosion is destroying farmland in a community in Nigeria. Explain its causes and propose a conservation plan for local farmers. (9 marks)

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SS 3 practice test B · 14 questions + 2 written tasks · 🔒