What is the role of the kidney ? a. it maintains the amount of water in the body b. it produces digestive enzymes. c. it removes toxins from food d. it makes bile

Answer:

The role of the kidney is to maintain the amount of water in the body.

Explanation:

Two kidneys are present in a human body that help the body to maintain the water level and solute concentration. It is also known as the osmoregulatory organ of the body.

If the water intake is low then the kidney excretes less water to maintain the healthy water level in the body and when there is no scarcity of water and regular intake then the kidney makes enough urine to balance the excess water in the body.

Along with water ion concentration of elements like sodium, potassium and other by-products of drugs and other molecules are also maintained and excreted from the kidney. The retention and excretion of water is also dependent on the signal provided by the body through hormonal action on the kidney.                                              

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