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Assertion :- 2,4 DNP is an uncoupling ag...

Assertion :- 2,4 DNP is an uncoupling agent in ETS.
Reason :- It is soluble in lipid.

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)

C

If Assertion is true statement but Reason is false, then mark (3)

D

If both Assertion and Reason are false statements, then mark (4)

Text Solution

AI Generated Solution

The correct Answer is:
To solve the assertion and reason question regarding 2,4-DNP as an uncoupling agent in the electron transport system (ETS), we can follow these steps: ### Step 1: Analyze the Assertion The assertion states that "2,4-DNP is an uncoupling agent in ETS." - **Explanation**: 2,4-Dinitrophenol (2,4-DNP) is known to disrupt the process of oxidative phosphorylation. It acts as an uncoupler by allowing protons to leak across the mitochondrial membrane, thereby uncoupling the electron transport chain from ATP synthesis. This means that while electrons are still being transferred through the chain, ATP is not being produced efficiently. ### Step 2: Analyze the Reason The reason states that "It is soluble in lipid." - **Explanation**: 2,4-DNP is indeed lipid-soluble (hydrophobic), which allows it to easily cross cell membranes. This property is essential for its function as an uncoupling agent because it needs to penetrate the mitochondrial membrane to exert its effect. ### Step 3: Determine the Relationship Now, we need to determine if the reason provided explains the assertion. - **Explanation**: While both statements are true, the reason that 2,4-DNP is lipid-soluble does not directly explain why it is an uncoupling agent. The assertion is about its function in the ETS, while the reason pertains to its chemical properties. ### Conclusion Since both the assertion and reason are true, but the reason does not adequately explain the assertion, the correct answer is that both statements are true, but the reason is not the correct explanation for the assertion. ### Final Answer **Option B**: Both assertion and reason are true, but the reason is not the correct explanation of the assertion. ---
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