Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 9 PCB Single Correct MCQ
Published on: August 12, 2026

Identify the correct option with respect to hormone, its source and its function:-

A
Hormone- Renin, Source-Kidney, Functions-Converts angiotensin I to angiotensin II
B
Hormone-ANF, Source-Ventricles of heart, Functions-Increases blood pressure
C
Hormone-ADH, Source Adenohypophysis, Functions-Increases water loss through urine
D
Hormone-Aldosterone, Source Adrenal cortex, Functions-Stimulates reabsorption of and water from DCT

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Text Solution

Verified by Experts
The correct answer is:
D

Renin is not a hormone but an enzyme, secreted by juxtaglomerular cells of kidney. Its role is to convert angiotensinogen to angiotensin I, not angiotensin I to II.
ANF (Atrial Natriuretic Factor) is secreted from the atria of heart (not ventricles). It reduces blood pressure by promoting excretion and vasodilation.
ADH (Antidiuretic hormone/vasopressin) is secreted by the neurohypophysis (posterior pituitary), not adenohypophysis. It decreases water loss by increasing water reabsorption, not increasing it.
Aldosterone is a mineralocorticoid hormone from the adrenal cortex. It increases and water reabsorption in DCT and collecting duct, thereby increasing blood volume and pressure.

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