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4.2 Respiration

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Question 10

A sample of living bean root cells releases carbon dioxide. The oxygen concentration around the cells is not measured.

What can be concluded about the type of respiration in the root cells?

[1]
A

Either type of respiration could be occurring, because both release carbon dioxide in plant cells

B

Either type of respiration could be occurring, because both produce ethanol in plant cells

C

Aerobic respiration must be occurring, because anaerobic respiration in plant cells makes only lactic acid

D

Aerobic respiration must be occurring, because carbon dioxide is released only when glucose is fully broken down

Markscheme

4.2 Respiration Questions

  1. GCSE
  2. /Biology
  3. /4.2 Respiration

92 exam-style questions on AQA GCSE Biology 4.2 Respiration, covering 4.2.1 Aerobic and anaerobic respiration, 4.2.2 Response to exercise, and 4.2.3 Metabolism. Each one has a worked solution and a mark scheme showing where the marks go.

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