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7.4 Blood glucose and the urinary system

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Question 13
H

The Figure shows how a kidney dialysis machine is used to treat a patient with kidney failure.

Figure

image

a.

Fresh dialysis fluid contains glucose and salts at the same concentrations as normal blood plasma. It contains no urea. Explain why.

[3]
b.

Fresh dialysis fluid is continuously pumped through the machine. Explain why.

[2]
c.

Discuss the advantages and disadvantages of a kidney transplant compared with dialysis for treating kidney failure.

[4]
Markscheme

7.4 Blood glucose and the urinary system Questions

  1. GCSE
  2. /Biology
  3. /7.4 Blood glucose and the urinary system

45 exam-style questions on Edexcel GCSE Biology 7.4 Blood glucose and the urinary system, covering 7.4.1 Insulin and blood glucose control, 7.4.2 Glucagon and blood glucose regulation, 7.4.3 Type 1 and type 2 diabetes, 7.4.4 Structure of the urinary system, 7.4.5 Structure and function of the nephron, 7.4.6 ADH and water regulation, 7.4.7 Treatments for kidney failure, and 7.4.8 Production of urea in the liver. Each one has a worked solution and a mark scheme showing where the marks go.

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