1.

Assertion: Antidiuretic hormone (ADH) controls the amount of water in the urine. Reason: ADH determines the permeability of the collecting duct to water.A. If both assertion and reason are true and reason is the correct explanation of assertionB. if both assertion and reason are true but reason is not the correct explanation of assertion.C. if assertion is true but reason is falseD. if both assertion and reason are false.

Answer» Correct Answer - A
Osmoreceptors in the body are activated by changes in blood volume, body fluid from the body can activate these receptors which stimulate the hypothalamus to release antidiuretic hormone (ADH) or vasopressin from the neurohypophysis. ADH facilitates water reabsorption from latter parts of the tubule, thereby preventing diuresis. An increases in bondy fluid volume can switch off the osmoreceptors


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