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NEET2026BiologyChapterActual

Read the following statements regarding the regulation of kidney function and select the correct ones. (a) Osmoreceptors in the body are activated by changes in blood volume, body fluid volume and ionic concentration. (b) A fall in glomerular filtration rate (GFR) activates the juxtaglomerular (JG) cells to release renin. (c) Angiotensin II acts as a powerful vasodilator to increase the glomerular blood pressure. (d)

Options

  1. A(a), (b) and (d) only
  2. B(b), (c) and (d) only
  3. C(a), (c) and (e) only
  4. D(a), (b) and (e) only

Correct answer

A. (a), (b) and (d) only

Step-by-step solution

Statement (a) is correct. Osmoreceptors in the body are activated by changes in blood volume, body fluid volume, and ionic concentration. Statement (b) is correct. A fall in glomerular blood flow, glomerular blood pressure, or GFR activates the juxtaglomerular (JG) cells to release renin. Statement (c) is incorrect. Angiotensin II acts as a powerful vasoconstrictor, not a vasodilator, which increases the glomerular blood pressure and thereby GFR. Statement (d) is correct. Atrial Natriuretic Factor (ANF) causes vaso

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