Final answer:
Catalase is the enzyme that catalyzes the reaction: H2O2+2H+-2H2O. It converts hydrogen peroxide into water and oxygen.
Step-by-step explanation:
The enzyme that catalyzes the reaction: H2O2+2H+-2H2O is catalase. Catalase is an enzyme that converts hydrogen peroxide (H2O2) into water (H2O) and oxygen (O2). This reaction helps to detoxify cells by breaking down hydrogen peroxide, a harmful byproduct of metabolic processes, into harmless water and oxygen.