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8.3 Respiration

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Question 17
F

Two samples of living cells use glucose. Sample P produces ethanol and carbon dioxide without oxygen. Sample Q produces carbon dioxide and water using oxygen.

Which comparison is correct?

[1]
A

only Q releases energy, because P uses no oxygen during respiration

B

only P releases energy, because Q uses oxygen during respiration

C

both release energy, but P releases more per glucose molecule

D

both release energy, but Q releases more 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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