Question

Which enzymes catalyzes the reaction: O2-+O2-+2H+-H2O2+O2?

A) catalase
B) oxidase
C) peroxidase
D) superoxide dismutase

Answer 1

Superoxide dismutase (SOD) is the enzyme that catalyzes the given reaction.

Step-by-step explanation:

Superoxide dismutase is an enzyme that breaks down the powerful superoxide anions generated by aerobic metabolism. It converts O2- into H2O2 and O2. This enzyme plays an important role in limiting the damage caused by peroxidation of membrane lipids. Therefore, option D) superoxide dismutase is the correct answer.