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Assertion :- An increase in glomerular b...

Assertion `:-` An increase in glomerular blood pressure can activate the JG of kidney to release renin.
Reason `:-` Angiotensin I is a powerful vaso constrictor.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion .

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Assertion**: The assertion states that an increase in glomerular blood pressure activates the juxtaglomerular (JG) cells of the kidney to release renin. - **Analysis**: In reality, an increase in glomerular blood pressure does not activate the JG cells to release renin. Instead, it is typically a decrease in blood pressure or blood volume that stimulates renin release. Therefore, this assertion is **false**. 2. **Understanding the Reason**: The reason states that angiotensin I is a powerful vasoconstrictor. - **Analysis**: Angiotensin I is not a powerful vasoconstrictor; it is angiotensin II that has this effect. Angiotensin I is converted from angiotensinogen by renin and then further converted to angiotensin II by the enzyme ACE (Angiotensin-Converting Enzyme). Thus, this reason is also **false**. 3. **Conclusion**: Since both the assertion and the reason are false, we can conclude that the correct answer is that both statements are incorrect. ### Final Answer: Both the assertion and the reason are false.
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