Question

Which of the following statements is false for Angiotensin.
i. It is a steroid hormone.
ii. Angiotensinogen is converted to angiotensin I by renin
iii. Angiotensin II decreases the release of aldosterone.
iv. Angiotensin II brings about vasoconstriction.
v. It stimulates $N{a}^{+}$ reabsorption from the Proximal convoluted tubule.

• A. i, ii and iii
• B. i and iii
• C. iii, iv and v
• D. i, iii and v

Answer 1

The correct option is B i and iii

Angiotensin is a peptide hormone. Hence, statement i is false. Renin converts Angiotensinogen to angiotensin I . Angiotensin converting enzyme converts Angiotensin I to Angiotensin II. It stimulates the synthesis and release of hormone Aldosterone. So, statement ii is false. Angiotensin II increases the blood pressure by bring about vasoconstriction and also reabsorption of $N{a}^{+}$ from the Proximal convoluted Tubule.

So, the correct answer is 'i and iii'