Enzymes: 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 · Enzymes

Sample item

What type of inhibition can usually be overcome by increasing substrate concentration?

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

The answer and the reasoning

B. Competitive inhibition

The core Enzymes principle identifies Competitive inhibition as the best answer because it most directly explains the biochemical pathway or tissue response described in the stem.

Option by option

  • A. Noncompetitive inhibition

    Noncompetitive inhibition does not match the stated enzymes mechanism.

  • B. Competitive inhibition (correct)

    Correct. Competitive inhibition is supported by the key clue given.

  • C. Irreversible inhibition

    Irreversible inhibition is relevant in another context but is not the best answer here.

  • D. Allosteric activation

    Allosteric activation does not account for the central finding in this sample.

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 B, Competitive inhibition. The core Enzymes principle identifies Competitive inhibition as the best answer because it most directly explains the biochemical pathway or tissue response described in the stem.

Why is "Noncompetitive inhibition" not the answer?

Noncompetitive inhibition does not match the stated enzymes mechanism.

Why is "Irreversible inhibition" not the answer?

Irreversible inhibition is relevant in another context but is not the best answer here.

Why is "Allosteric activation" not the answer?

Allosteric activation does not account for the central finding in this sample.

What concept does this question test?

It tests Enzymes in Biochemistry. The correct option holds because: Correct. Competitive inhibition is supported by the key clue given.

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 Enzymes?

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.