Multiple choice

Which of the following is a bacterial enzyme that combines O2 with H+ to remove O2 in growth culture media method?

  1. Peroxidase

  2. Catalase

  3. Oxyrase

  4. Superoxide dismutase

  5. Mannitol

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Oxyrase is a bacterial respiratory enzyme that can be put in media; it combines O2 with H+ to remove O2 by forming H2O and turns the petri dish into a mini-anaerobic chamber. Anaerobic chambers with air locks are filled with inert gas.