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2.2 Animal tissues, organs and organ systems

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Question 17
F

A coronary artery becomes narrowed by fatty material. Which explains the effect of this on the cells of the heart muscle?

[1]
A

They receive less oxygen, so they carry out more aerobic respiration

B

They receive less carbon dioxide, so they carry out less aerobic respiration

C

They receive less oxygen, so they carry out less aerobic respiration

D

They receive less carbon dioxide, so they carry out more aerobic respiration

Markscheme

2.2 Animal tissues, organs and organ systems Questions

  1. GCSE
  2. /Biology
  3. /2.2 Animal tissues, organs and organ systems

179 exam-style questions on AQA GCSE Biology 2.2 Animal tissues, organs and organ systems, covering 2.2.1 The human digestive system, 2.2.2 The heart and blood vessels, 2.2.3 Blood, 2.2.4 Coronary heart disease: a non-communicable disease, 2.2.5 Health issues, 2.2.6 The effect of lifestyle on some non-communicable diseases, and 2.2.7 Cancer. Each one has a worked solution and a mark scheme showing where the marks go.

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