Heme 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 · Heme metabolism

Sample item

What pigment gives bile its yellow-green color?

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

The answer and the reasoning

C. Bilirubin

The defining Heme metabolism relationship supports Bilirubin; it is the option that most directly explains the biochemical pathway or pathological process in the stem.

Option by option

  • A. Hemoglobin

    Hemoglobin does not match the stated heme metabolism mechanism.

  • B. Melanin

    Melanin is relevant in a different context but is not supported here.

  • C. Bilirubin (correct)

    Correct. Bilirubin is the appropriate conclusion from the key feature.

  • D. Urobilinogen only

    Urobilinogen only does not account for the central finding in this item.

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.

More Biochemistry questions

Questions about this Biochemistry question

What is the answer to this Biochemistry question?

The best answer is C, Bilirubin. The defining Heme metabolism relationship supports Bilirubin; it is the option that most directly explains the biochemical pathway or pathological process in the stem.

Why is "Hemoglobin" not the answer?

Hemoglobin does not match the stated heme metabolism mechanism.

Why is "Melanin" not the answer?

Melanin is relevant in a different context but is not supported here.

Why is "Urobilinogen only" not the answer?

Urobilinogen only does not account for the central finding in this item.

What concept does this question test?

It tests Heme metabolism in Biochemistry. The correct option holds because: Correct. Bilirubin 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 Heme 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.