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8.3 Respiration

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Question 28
H

Two model muscle cells have the same energy demand. In each cell, aerobic respiration releases 30 units per glucose molecule and anaerobic respiration releases 2 units.

Cell P obtains all its energy by respiring 8 glucose molecules aerobically. Cell Q obtains half of the same energy demand aerobically and half anaerobically.

How many glucose molecules does cell Q break down in total?

[1]
A

60 molecules

B

8 molecules

C

64 molecules

D

120 molecules

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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