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4.2 Respiration

4.2 Respiration

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Question 8
H

Muscle cells respire anaerobically during a 200 m sprint. Which statement explains why?

[1]
A

Oxygen is not needed by muscle cells that are contracting very quickly.

B

Glucose cannot be delivered to the muscles fast enough to meet the demand.

C

Glucose is completely oxidised only when the muscles contract very quickly.

D

Oxygen cannot be delivered to the muscles fast enough to meet the demand.

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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