Respiratory 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.

Try it

Physiology · Respiratory physiology

Sample item

What changes during exercise to enhance oxygen delivery?

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

The answer and the reasoning

D. Cardiac output increases

The core Respiratory physiology relationship supports Cardiac output increases; it is the response that directly accounts for the structural location or physiological change described.

Option by option

  • A. Hemoglobin disappears

    Hemoglobin disappears does not fulfill the structural or functional role requested.

  • B. Ventilation stops

    Ventilation stops is associated with a different respiratory physiology relationship.

  • C. Alveoli collapse

    Alveoli collapse is not consistent with the key finding in the stem.

  • D. Cardiac output increases (correct)

    Correct. Cardiac output increases is directly supported by the central clue.

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 Physiology questions

Questions about this Physiology question

What is the answer to this Physiology question?

The best answer is D, Cardiac output increases. The core Respiratory physiology relationship supports Cardiac output increases; it is the response that directly accounts for the structural location or physiological change described.

Why is "Hemoglobin disappears" not the answer?

Hemoglobin disappears does not fulfill the structural or functional role requested.

Why is "Ventilation stops" not the answer?

Ventilation stops is associated with a different respiratory physiology relationship.

Why is "Alveoli collapse" not the answer?

Alveoli collapse is not consistent with the key finding in the stem.

What concept does this question test?

It tests Respiratory physiology in Physiology. The correct option holds because: Correct. Cardiac output increases is directly supported by the central clue.

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 Respiratory 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.