Antimicrobial resistance: 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 · Antimicrobial resistance

Sample item

What does a biofilm contribute to in device-associated infection?

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

The answer and the reasoning

A. Reduced antimicrobial penetration and immune clearance

Biofilms are structured microbial communities on surfaces that impair antibiotic penetration and protect organisms from host defenses and shear forces.

Option by option

  • A. Reduced antimicrobial penetration and immune clearance (correct)

    Correct: biofilm promotes persistence on devices.

  • B. Immediate spore formation

    Spore formation is not required.

  • C. Loss of bacterial adhesion

    Biofilm enhances rather than loses adhesion.

  • D. Complete susceptibility to antibiotics

    It often increases tolerance to treatment.

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, Reduced antimicrobial penetration and immune clearance. Biofilms are structured microbial communities on surfaces that impair antibiotic penetration and protect organisms from host defenses and shear forces.

Why is "Immediate spore formation" not the answer?

Spore formation is not required.

Why is "Loss of bacterial adhesion" not the answer?

Biofilm enhances rather than loses adhesion.

Why is "Complete susceptibility to antibiotics" not the answer?

It often increases tolerance to treatment.

What concept does this question test?

It tests Antimicrobial resistance in Microbiology. The correct option holds because: Correct: biofilm promotes persistence on devices.

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 Antimicrobial resistance?

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.