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 lipoprotein participates in reverse cholesterol transport?

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

The answer and the reasoning

B. High-density lipoprotein

HDL accepts cholesterol from peripheral tissues and returns it toward the liver, a process called reverse cholesterol transport.

Option by option

  • A. Low-density lipoprotein

    LDL delivers cholesterol to tissues.

  • B. High-density lipoprotein (correct)

    Correct: HDL removes peripheral cholesterol.

  • C. Very-low-density lipoprotein

    VLDL carries hepatic triglyceride.

  • D. Chylomicron

    Chylomicrons carry dietary triglyceride.

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, High-density lipoprotein. HDL accepts cholesterol from peripheral tissues and returns it toward the liver, a process called reverse cholesterol transport.

Why is "Low-density lipoprotein" not the answer?

LDL delivers cholesterol to tissues.

Why is "Very-low-density lipoprotein" not the answer?

VLDL carries hepatic triglyceride.

Why is "Chylomicron" not the answer?

Chylomicrons carry dietary triglyceride.

What concept does this question test?

It tests Lipid metabolism in Biochemistry. The correct option holds because: Correct: HDL removes peripheral cholesterol.

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.