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AIIMS2019ZoologyExcretory Products and their Elimination

Assertion : Stimulation of renin secretion will increase the volume of extracellular fluid (ECF). Reason : Increased ECF occurs due to decreased active reabsorption of Na ⁺ .

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

C. If assertion is true but reason is false.

Step-by-step solution

When ECF secretion decreases, renin release is stimulated which reduces Na ⁺ excretion, which in turn increases volume of ECF. When sodium intake exceeds sodium output by the kidneys, total body sodium and extracellular fluid volume increases.

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