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8.3 Respiration

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Question 21
F

A student measures gases around living root cells supplied with enough oxygen. The table shows changes during the investigation.

Table

GasChange in amount
oxygendecreases
carbon dioxideincreases

Which explanation accounts for both changes?

[1]
A

glucose reacts with oxygen and carbon dioxide is released

B

glucose reacts with carbon dioxide and oxygen is released

C

glucose forms ethanol and oxygen is released as a product

D

glucose forms lactic acid and carbon dioxide is released

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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