Multiple choice

Which of the following is a pair of catalase-positive bacteria?

  1. Enterobacter and Klebsiella

  2. Enterococcus and Streptococcus

  3. Enterobacter and Enterococcus

  4. Enterococcus and Klebsiella

  5. Klebsiella and Streptococcus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Catalase Test: The catalase test is done by placing a drop of hydrogen peroxide on a microscope slide. If the bacteria possess catalase, when a small amount of bacterial isolate is added to hydrogen peroxide, bubbles of oxygen are observed. If the mixture produces bubbles or froth, the organism is said to be 'catalase-positive' otherwise it is 'catalase-negative’. Enterobacter and Klebsiella: Catalase-positive bacteria.

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