Immunology: practice question

A Microbiology 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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Microbiology · Immunology

Sample item

What is the main role of antibodies?

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

The answer and the reasoning

A. Bind specific antigens

Antibodies bind specific antigens and can neutralize toxins or viruses, opsonize microbes, activate complement, and mediate other targeted immune functions.

Option by option

  • A. Bind specific antigens (correct)

    Correct: antibodies recognize and bind specific antigens.

  • B. Form erythrocytes

    Erythrocytes arise from hematopoietic precursors.

  • C. Produce ATP

    ATP is produced mainly through cellular metabolic pathways.

  • D. Digest all bacteria directly

    Antibodies do not directly digest bacteria.

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 Microbiology questions

Questions about this Microbiology question

What is the answer to this Microbiology question?

The best answer is A, Bind specific antigens. Antibodies bind specific antigens and can neutralize toxins or viruses, opsonize microbes, activate complement, and mediate other targeted immune functions.

Why is "Form erythrocytes" not the answer?

Erythrocytes arise from hematopoietic precursors.

Why is "Produce ATP" not the answer?

ATP is produced mainly through cellular metabolic pathways.

Why is "Digest all bacteria directly" not the answer?

Antibodies do not directly digest bacteria.

What concept does this question test?

It tests Immunology in Microbiology. The correct option holds because: Correct: antibodies recognize and bind specific antigens.

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 Immunology?

Make a one-line identity card for each organism: shape and stain, defining test, toxin, disease and drug. Then use the flashcards and the other Microbiology 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.