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4.2 Respiration

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Question 8

Two samples of onion bulb cells are supplied with glucose. In sample P, the glucose is broken down completely and a large amount of energy is transferred. In sample Q, the glucose is broken down only partly and much less energy is transferred.

Which description of the oxygen supply is most accurate?

[1]
A

Sample P has oxygen available; sample Q does not have oxygen available.

B

Sample P does not have oxygen available; sample Q has oxygen available.

C

Both sample P and sample Q have oxygen available.

D

Neither sample P nor sample Q has oxygen available.

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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