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8.3 Respiration

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Question 24
H

A yeast culture respires using glucose. Oxygen use falls to zero, but carbon dioxide production continues and ethanol begins to accumulate.

Which explanation accounts for all three changes?

[1]
A

respiration continues anaerobically, with more energy released per glucose molecule

B

respiration continues aerobically, with less energy released per glucose molecule

C

respiration continues anaerobically, with less energy released per glucose molecule

D

respiration continues aerobically, with more energy released per glucose molecule

Markscheme

8.3 Respiration Questions

  1. GCSE
  2. /Biology
  3. /8.3 Respiration

42 exam-style questions on Edexcel GCSE Biology 8.3 Respiration, covering 8.3.1 Aerobic and anaerobic respiration. Each one has a worked solution and a mark scheme showing where the marks go.

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