Bacteriology: 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.

Try it

Microbiology · Bacteriology

Sample item

Which disease is caused by Corynebacterium diphtheriae toxin?

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

The answer and the reasoning

A. Myocarditis with neuropathy after pharyngitis

Diphtheria toxin inhibits protein synthesis and can cause a pharyngeal pseudomembrane followed by myocarditis and neuropathy.

Option by option

  • A. Myocarditis with neuropathy after pharyngitis (correct)

    Correct: toxin complications include heart and nerve injury.

  • B. Chronic urethritis

    Urethritis has other common causes.

  • C. Flaccid paralysis from canned food

    Canned-food paralysis suggests botulism.

  • D. Haemorrhagic colitis after antibiotics

    Antibiotic colitis suggests C. difficile.

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, Myocarditis with neuropathy after pharyngitis. Diphtheria toxin inhibits protein synthesis and can cause a pharyngeal pseudomembrane followed by myocarditis and neuropathy.

Why is "Chronic urethritis" not the answer?

Urethritis has other common causes.

Why is "Flaccid paralysis from canned food" not the answer?

Canned-food paralysis suggests botulism.

Why is "Haemorrhagic colitis after antibiotics" not the answer?

Antibiotic colitis suggests C. difficile.

What concept does this question test?

It tests Bacteriology in Microbiology. The correct option holds because: Correct: toxin complications include heart and nerve injury.

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 Bacteriology?

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.