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2023 · Paper 2 · Question 6 · 9 marks

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6.1

Describe and explain how three features of the cells in the proximal convoluted tubule allow the rapid reabsorption of glucose into the blood.

1

2

3

3 marks
6.2

Antidiuretic hormone (ADH) binds to V receptors found in cell-surface membranes in two parts of a nephron.

Name the two parts of a nephron where V receptors are found.

1 mark
6.3

V receptors only bind with ADH.

Suggest and explain why.

2 marks
6.4

A decrease in blood pressure stimulates the release of ADH.

Give the location of the receptors that detect a decrease in blood pressure and explain how the release of ADH will affect blood pressure.

Location

Explanation

3 marks