What is the reactant (substrate) in the reaction above? select all that apply. h2o2 h2o o2 catalase

Answer;

- Hydrogen peroxide

Explanation;

-Enzyme catalase is a protein enzyme present in most aerobic cells in animal tissues. Catalase is present in all body organs being especially concentrated in the liver & erythrocytes.  The brain, heart, skeletal muscle contains only low amounts.

The substrate for the enzyme catalase is hydrogen peroxide. It catalyzes the decomposition of hydrogen peroxide to water and oxygen.

2H2O2 = 2H2O + O2

not sure if this is what you'r looking for eubacteria and archaebacteria

the answer is c on e2020, bud.