AP BIOLOGY

ANIMAL PHYSIOLOGY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
On a very hot day a long distance runner will produce large quantities of sweat. How will the kidneys adapt to this situation?
A
Increased amounts of urine to remove amino acids
B
Decreased urine production to allow the body to conserve water
C
increased amounts of urine to help the body retain water
D
less urine increases the amount of amino acids
Explanation: 

Detailed explanation-1: -For instance, water is lost by the body in hot weather in sweat. This triggers the release of ADH into the blood which acts on the cells of the distal tubule and collecting duct to increase water resorption thus reducing the amount excreted.

Detailed explanation-2: -The kidneys regulate the fluid and electrolyte balance of the body by continually filtering the blood. This is vital to maintain a constant extracellular fluid volume and composition.

Detailed explanation-3: -On a hot day, we’ve just learned that sweat production increases. Because of this, the overall amount of water available in the body decreases. Because there’s a lower amount of water available, less water will be excreted in the urine in order to conserve water for the body. So the volume of urine will decrease.

Detailed explanation-4: -As sweat evaporates from your skin, it removes heat from the body, but you also lose body fluid. You need to drink fluid during exercise to replace the fluids you lose when you sweat. That way, you’ll reduce the risk of heat stress, maintain normal body function, and maintain performance levels.

There is 1 question to complete.