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Excretion as an example of homeostatic control

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Question 1

Patients with kidney failure can be treated in different ways, including haemodialysis. Which of the following statements describes a feature of haemodialysis?

  1. Blood is passed through an external machine containing a synthetic semi-permeable membrane.
  2. Heparin is added to the blood to prevent clotting while it is outside the body.
  3. The peritoneal membrane lining the abdominal cavity of the patient acts as the filtration barrier.
A

1, 2 and 3

B

Only 1 and 2

C

Only 2 and 3

D

Only 1

Markscheme

Excretion as an example of homeostatic control Questions

  1. A Level
  2. /Biology
  3. /Excretion as an example of homeostatic control

17 exam-style questions on OCR A A Level Biology Excretion as an example of homeostatic control. Each one has a worked solution and a mark scheme showing where the marks go.

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