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2.2 Animal tissues, organs and organ systems

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Question 55

A patient suddenly collapses. Doctors find that one of the vessels supplying the heart muscle has become completely blocked. Which statement describes a likely result of the blockage?

[1]
A

Carbon dioxide can no longer reach the heart muscle for respiration

B

Blood cannot return from the body because the vena cava is blocked

C

Haemoglobin can no longer bind to oxygen in the lungs

D

Part of the heart muscle does not receive oxygen, causing a heart attack

Markscheme

2.2 Animal tissues, organs and organ systems Questions

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

304 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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