What happens when the salt concentration in the blood becomes too low?

Question

Question 5 Answer

a.
The walls of the distal convoluted tubules become permeable to water.

b.
The adrenal gland secretes more aldosterone.

c.
The adrenal gland secretes less aldosterone.

d.
The hypothalamus sends impulses to the hypophysis.

Answer 1

When the salt concentration in the blood becomes too low, the correct answer is:

c. The adrenal gland secretes less aldosterone.

Here's why: Aldosterone is a hormone produced by the adrenal glands that promotes sodium reabsorption in the kidneys. When blood sodium levels are low, the secretion of aldosterone typically decreases as part of the body's feedback mechanisms. This reduction in aldosterone allows for the excretion of sodium to help maintain homeostasis.