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4.2 Respiration

4.2 Respiration

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Question 28
H

A person stops exercising, but their breathing remains faster and deeper than at rest. Which explanation is most complete?

[1]
A

Extra oxygen is needed to produce lactic acid in the liver and return it to muscle cells

B

Extra oxygen is needed to convert glucose into lactic acid and increase muscle fatigue

C

Extra oxygen is needed to convert ethanol into glucose and remove it from the lungs

D

Extra oxygen is needed to react with accumulated lactic acid and remove it from cells

Markscheme

4.2 Respiration Questions

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

51 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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