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2.2 Animal tissues, organs and organ systems

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Question 13
F

During exercise a person's heart rate increases. Which statement explains why this allows the person to keep exercising?

[1]
A

A greater volume of blood is pumped each minute, so the muscle cells receive more oxygen

B

Blood pressure in the arteries falls, so blood is able to flow to the muscles more easily

C

Blood passes through the lungs more slowly, so more oxygen diffuses into the blood

D

A greater volume of blood is pumped each minute, so the muscle cells make less carbon dioxide

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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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