Question

When a high salt concentration is detected, the body will produce ______ ADH hormone, causing the collecting duct to become _______ permeable to water. A. less, more B. less, less C. more, more D. more, less

Answer 1

The correct answer is D. more, less.

Step-by-step explanation:

When a high salt concentration is detected, the hypothalamus in the brain releases more antidiuretic hormone (ADH) from the pituitary gland. ADH acts on the cells of the collecting duct in the kidneys, causing them to become less permeable to water. As a result, more water is reabsorbed back into the bloodstream, and less is lost in the urine. This helps to maintain the body's water balance and prevent dehydration.