Gastrointestinal 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 · Gastrointestinal physiology

Sample item

What is the main action of cholecystokinin after a fatty meal?

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

The answer and the reasoning

A. Gallbladder contraction and pancreatic enzyme secretion

Cholecystokinin responds to fats and amino acids in the duodenum by contracting the gallbladder and stimulating pancreatic enzyme secretion.

Option by option

  • A. Gallbladder contraction and pancreatic enzyme secretion (correct)

    Correct: CCK delivers bile and enzymes for nutrient digestion.

  • B. Stimulation of erythropoiesis

    Erythropoiesis is stimulated mainly by erythropoietin.

  • C. Release of renin from kidney

    Renin release is controlled by renal haemodynamic signals.

  • D. Inhibition of all intestinal motility

    It does not abolish intestinal motility.

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 A, Gallbladder contraction and pancreatic enzyme secretion. Cholecystokinin responds to fats and amino acids in the duodenum by contracting the gallbladder and stimulating pancreatic enzyme secretion.

Why is "Stimulation of erythropoiesis" not the answer?

Erythropoiesis is stimulated mainly by erythropoietin.

Why is "Release of renin from kidney" not the answer?

Renin release is controlled by renal haemodynamic signals.

Why is "Inhibition of all intestinal motility" not the answer?

It does not abolish intestinal motility.

What concept does this question test?

It tests Gastrointestinal physiology in Physiology. The correct option holds because: Correct: CCK delivers bile and enzymes for nutrient digestion.

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 Gastrointestinal 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.