Multiple choice

What is the component which chemically removed molecular oxygen, that might interfere with the growth of anaerobes in a growth media?

  1. Seaweed extract (polysaccharide)

  2. Biotin

  3. Sodium Thioglycolate

  4. Oxyrase

  5. Both (3) and (4)
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Correct answer. Sodium Thioglycolate combines with dissolved O2 to deplete O2 in media. 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

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