How do enzymes affect reactions?

O

A. Enzymes are used up in reactions.

O

B. Enzymes cause reactions that normally release energy to absorb

energy

O

C. Enzymes prevent reactions from occurring.

O

D. Enzymes lower the activation energy required for reactions to

occur.

Answer: it, s D

Explanation:

Enzymes are known as biological catalyst and work by lowering the activation energy of a reaction. They do this by providing an alternative pathway which speeds up the reaction without the catalyst undergoing a permanent change ... An important thing to remember is that enzymes do not affect the equilibrium of a reaction.