Renal physiology: practice question

A Physiology 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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Physiology · Renal physiology

Sample item

What hormone increases water reabsorption in collecting ducts?

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

The answer and the reasoning

D. Antidiuretic hormone

The relevant Renal physiology principle makes Antidiuretic hormone the best answer because it directly explains the structure or physiological response in the stem.

Option by option

  • A. Aldosterone only

    Aldosterone only does not correspond to the structure or response being tested.

  • B. Insulin

    Insulin is associated with a different anatomical or physiological role.

  • C. Thyroxine

    Thyroxine is not supported by the key clue provided in this item.

  • D. Antidiuretic hormone (correct)

    Correct. Antidiuretic hormone directly follows from the core renal physiology relationship.

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 Physiology question

What is the answer to this Physiology question?

The best answer is D, Antidiuretic hormone. The relevant Renal physiology principle makes Antidiuretic hormone the best answer because it directly explains the structure or physiological response in the stem.

Why is "Aldosterone only" not the answer?

Aldosterone only does not correspond to the structure or response being tested.

Why is "Insulin" not the answer?

Insulin is associated with a different anatomical or physiological role.

Why is "Thyroxine" not the answer?

Thyroxine is not supported by the key clue provided in this item.

What concept does this question test?

It tests Renal physiology in Physiology. The correct option holds because: Correct. Antidiuretic hormone directly follows from the core renal physiology relationship.

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 Renal physiology?

For each system, sketch the key graph (pressure–volume loop, oxygen dissociation curve, nephron handling) and explain it aloud. Then use the flashcards and the other Physiology 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.