Question

Enzymes are proteins that are found in cells. What is their role?
A. All of these.

B. They speed up chemical reactions in cells.

C. They regulate the absorption of energy in chemical reactions.

D. They lower the activation energy needed for some reactions.

Answer 1

Answer:

I believe the answer is B. They speed up the chemical reactions in cells.

Let me know if I'm wrong, pls. :)