Lipid metabolism: practice question

A Biochemistry question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Biochemistry · Lipid metabolism

Sample item

Which enzyme is inhibited by statin drugs?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

B. HMG-CoA reductase

The defining Lipid metabolism relationship supports HMG-CoA reductase; it is the option that most directly explains the biochemical pathway or pathological process in the stem.

Option by option

  • A. Acetylcholinesterase

    Acetylcholinesterase does not account for the central finding in this item.

  • B. HMG-CoA reductase (correct)

    Correct. HMG-CoA reductase is the appropriate conclusion from the key feature.

  • C. Pancreatic lipase

    Pancreatic lipase is relevant in a different context but is not supported here.

  • D. Lipoprotein lipase

    Lipoprotein lipase does not match the stated lipid metabolism mechanism.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

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Questions about this Biochemistry question

What is the answer to this Biochemistry question?

The best answer is B, HMG-CoA reductase. The defining Lipid metabolism relationship supports HMG-CoA reductase; it is the option that most directly explains the biochemical pathway or pathological process in the stem.

Why is "Acetylcholinesterase" not the answer?

Acetylcholinesterase does not account for the central finding in this item.

Why is "Pancreatic lipase" not the answer?

Pancreatic lipase is relevant in a different context but is not supported here.

Why is "Lipoprotein lipase" not the answer?

Lipoprotein lipase does not match the stated lipid metabolism mechanism.

What concept does this question test?

It tests Lipid metabolism in Biochemistry. The correct option holds because: Correct. HMG-CoA reductase is the appropriate conclusion from the key feature.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Lipid metabolism?

Build one table of enzyme deficiency, disease, inheritance and key finding, then revise it by spaced recall. Then use the flashcards and the other Biochemistry questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.