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1.3 Respiration

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Question 18

A fox runs at high speed. Blood delivers glucose and oxygen to its working muscle cells.

Which condition causes the muscle cells to switch from aerobic to anaerobic respiration?

[1]
A

oxygen is used faster than the blood can deliver it

B

glucose is used faster than the blood can deliver it

C

oxygen is delivered faster than the cells can use it

D

glucose is delivered faster than the cells can use it

Markscheme

1.3 Respiration Questions

  1. GCSE
  2. /Biology
  3. /1.3 Respiration

113 exam-style questions on OCR GCSE Biology 1.3 Respiration, covering 1.3.1 Cellular respiration supplies ATP, 1.3.2 Aerobic and anaerobic respiration, 1.3.3 Sugars and carbohydrates, 1.3.4 Amino acids and proteins, and 1.3.5 Fatty acids and lipids. Each one has a worked solution and a mark scheme showing where the marks go.

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