What is the role of aldosterone in kidney function?
(A) Aldosterone acts on the walls of the nephron tubules, changing the permeability of the tubules to react to changes in blood water concentration - HSC - SSCE Biology - Question 9 - 2006 - Paper 1
Question 9
What is the role of aldosterone in kidney function?
(A) Aldosterone acts on the walls of the nephron tubules, changing the permeability of the tubules to react to c... show full transcript
Worked Solution & Example Answer:What is the role of aldosterone in kidney function?
(A) Aldosterone acts on the walls of the nephron tubules, changing the permeability of the tubules to react to changes in blood water concentration - HSC - SSCE Biology - Question 9 - 2006 - Paper 1
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Answer
The role of aldosterone in kidney function is best described by option (D). Aldosterone is released when blood pressure decreases to increase sodium ion reabsorption rates, which subsequently leads to more water being reabsorbed, thereby increasing blood pressure.