Multiple choice

Which of the following statements about gram +ve bacteria is true?

  1. Gram +ve bacteria can be lysed by complement.

  2. They have a particularly thick outer carbohydrate capsule.

  3. Gram +ve bacteria are stained by crystal violet.

  4. They contain endotoxin.

  5. A gram-positive bacterium's cell wall consists of mainly glygozen.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Staining with crystal violet is the means by which bacteria have been classified historically.

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