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8.3 Respiration

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Question 26
H

Three cell samples are supplied with glucose. The table shows their respiration products.

Table

SampleProducts detected
Pcarbon dioxide and water
Qlactic acid
Rethanol and carbon dioxide

Each sample uses only one respiration pathway.

Which statement correctly identifies the pathways?

[1]
A

P uses oxygen; Q and R break down glucose incompletely

B

P uses oxygen; Q and R break down glucose completely

C

R uses oxygen; P and Q break down glucose completely

D

Q uses oxygen; P and R break down glucose incompletely

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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