Question

(Q.1-5)

True(a) / False(b)

1. Aldosterone increases potassium absorption.

2. ADH reduces water reabsorption.

3. Kidneys control the blood pH.

4. Not all the glucose is absorbed back from the kidney tubules in a healthy person.

5. There are about a thousand nephrons in a human kidney.

Answer 1

1. 1-FALSE== Hyperaldosteronism {high levels of aldosterone} can cause high blood pressure and low potassium levels..
2. FALSE=ADH increases water reabsorbtion...exp- {ADH hormones binds to receptors on cells in the collecting ducts of the kidney and promotes reabsorption of water back into the circulation.
3. TRUE explanation. {Kidneys can regulate reabsorption of carbonic acid in the tubule, increasing or reducing acid secretion. So, urine that is more acidic than normal may mean the body is ridding itself of excess dietary acid and thus making blood pH more alkaline. Ammonia is another way the kidney can regulate pH balance. Blood pH does not vary more than a minute amount from its expected level except in cases of critical illness, disturbances in kidney function or diseases that affect control of breathing.
4. FALSE- EXP. {If glucose is not reabsorbed by the kidney, it appears in the urine, in a condition known as glucosuria. This is associated with diabetes mellitus.}
5. FALSE --{There are about 1,000,000 nephrons in each human kidney.}
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