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2.2 Animal tissues, organs and organ systems

2.2 Animal tissues, organs and organ systems

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Question 31

The human circulatory system transports various substances around the body and consists of blood, blood vessels, and the heart.

a.

Blood plasma is the liquid component of blood. Name two substances, other than urea, that are transported in the blood plasma.

[2]
b.

Red blood cells are highly specialized cells. Explain how two structural adaptations of a red blood cell allow it to transport oxygen efficiently.

[3]
c.

Compare the structure of an artery with the structure of a vein.

[3]
Markscheme

2.2 Animal tissues, organs and organ systems Questions

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

44 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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