Question

in cells, _____ are proteins that are needed to lower the amout of energy required to start chemical reactions.
a. acids
b. enzymes
c. products
d. substrates

Answer 1

The answer is B. enzymes. Enzymes are a substance produced my living organisms that act like a catalyst to bring specific chemical reactions.

Hope This Helps You!
Good Luck Studying :)

Answer 2

Yes the other person is correct it's B. Enzymes