Assertion: After drinking, alcohol is changed to glucose in liver.
Reason: Liver cells are able to form glucose from alcohol by reverse fermentation.

Options

A. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B. If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
C. If Assertion is true but the Reason is false.
D. If both Assertion and Reason are false.

Answer

To solve the question, we need to evaluate both the assertion and the reason provided.

### Step 1: Analyze the Assertion
The assertion states: "After drinking, alcohol is changed to glucose in the liver."

- This statement is incorrect. When alcohol (ethanol) is consumed, it is metabolized in the liver primarily into acetaldehyde and then further into acetic acid, not glucose. The liver does not convert alcohol directly into glucose.

### Step 2: Analyze the Reason
The reason states: "Liver cells are able to form glucose from alcohol by reverse fermentation."

- This statement is also incorrect. The process of fermentation typically refers to the conversion of sugars into alcohol and other products, not the reverse. The liver does not perform reverse fermentation to convert alcohol back into glucose. Instead, glucose can be synthesized through gluconeogenesis, but this process does not involve alcohol as a substrate.

### Step 3: Conclusion
Since both the assertion and the reason are false, we conclude that the correct answer is option number four: both the assertion and reason are false.

### Final Answer
Both the assertion and reason are false.

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