Membrane transport: 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 · Membrane transport

Sample item

What transport mechanism moves glucose into many cells down its gradient through a carrier?

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

The answer and the reasoning

A. Facilitated diffusion

Facilitated diffusion uses a membrane carrier to move glucose down its concentration gradient without directly consuming ATP, as with GLUT transporters.

Option by option

  • A. Facilitated diffusion (correct)

    Correct: GLUT-mediated glucose movement is facilitated diffusion.

  • B. Endocytosis

    Endocytosis brings bulk material into cells in vesicles.

  • C. Phagocytosis

    Phagocytosis is uptake of large particles by specialized cells.

  • D. Primary active transport

    Primary active transport directly uses ATP to move solute against a gradient.

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 A, Facilitated diffusion. Facilitated diffusion uses a membrane carrier to move glucose down its concentration gradient without directly consuming ATP, as with GLUT transporters.

Why is "Endocytosis" not the answer?

Endocytosis brings bulk material into cells in vesicles.

Why is "Phagocytosis" not the answer?

Phagocytosis is uptake of large particles by specialized cells.

Why is "Primary active transport" not the answer?

Primary active transport directly uses ATP to move solute against a gradient.

What concept does this question test?

It tests Membrane transport in Physiology. The correct option holds because: Correct: GLUT-mediated glucose movement is facilitated diffusion.

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 Membrane transport?

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.