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 organism is a common cause of community-acquired lobar pneumonia?

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

The answer and the reasoning

D. Streptococcus pneumoniae

The central Bacteriology concept identifies Streptococcus pneumoniae as the best answer because it directly explains the mechanism, indication, adverse effect, or organism feature described.

Option by option

  • A. Clostridium difficile

    Clostridium difficile has another context but is not the most appropriate answer here.

  • B. Escherichia coli

    Escherichia coli does not fit the stated bacteriology relationship.

  • C. Neisseria meningitidis

    Neisseria meningitidis is unsupported by the mechanism or clinical clue in the stem.

  • D. Streptococcus pneumoniae (correct)

    Correct. Streptococcus pneumoniae matches the decisive point in this scenario.

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 D, Streptococcus pneumoniae. The central Bacteriology concept identifies Streptococcus pneumoniae as the best answer because it directly explains the mechanism, indication, adverse effect, or organism feature described.

Why is "Clostridium difficile" not the answer?

Clostridium difficile has another context but is not the most appropriate answer here.

Why is "Escherichia coli" not the answer?

Escherichia coli does not fit the stated bacteriology relationship.

Why is "Neisseria meningitidis" not the answer?

Neisseria meningitidis is unsupported by the mechanism or clinical clue in the stem.

What concept does this question test?

It tests Bacteriology in Microbiology. The correct option holds because: Correct. Streptococcus pneumoniae matches the decisive point in this scenario.

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.