SSCE HSC Biology Homeostasis: What is the role of aldosterone

Question

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.

(B) Aldosterone is able to detect changes in blood pressure, and causes changes in water reabsorption to return blood pressure to normal.

(C) When blood pressure increases, aldosterone is released to increase sodium ion reabsorption rates, which causes less water to be reabsorbed, decreasing blood pressure.

(D) When blood pressure decreases, aldosterone is released to increase sodium ion reabsorption rates, which causes more water to be reabsorbed, increasing blood pressure.

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

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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