Vitamins: 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 · Vitamins

Sample item

What vitamin deficiency may cause cheilosis and glossitis?

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

The answer and the reasoning

C. Riboflavin

Riboflavin deficiency can cause angular cheilosis, glossitis, and mucosal inflammation because of its role in flavin coenzyme-dependent reactions.

Option by option

  • A. Vitamin A

    Vitamin A deficiency causes night blindness and xerophthalmia.

  • B. Vitamin D

    Vitamin D deficiency causes rickets or osteomalacia.

  • C. Riboflavin (correct)

    Correct: riboflavin deficiency can cause cheilosis and glossitis.

  • D. Vitamin K

    Vitamin K deficiency causes impaired clotting-factor activation.

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, Riboflavin. Riboflavin deficiency can cause angular cheilosis, glossitis, and mucosal inflammation because of its role in flavin coenzyme-dependent reactions.

Why is "Vitamin A" not the answer?

Vitamin A deficiency causes night blindness and xerophthalmia.

Why is "Vitamin D" not the answer?

Vitamin D deficiency causes rickets or osteomalacia.

Why is "Vitamin K" not the answer?

Vitamin K deficiency causes impaired clotting-factor activation.

What concept does this question test?

It tests Vitamins in Biochemistry. The correct option holds because: Correct: riboflavin deficiency can cause cheilosis and glossitis.

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 Vitamins?

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.