Enzymes---?

Question

a)are proteins.

b)change the rate of chemical reactions.

c)help organisms maintain internal balance.

d)all of the above

Answer 1

The answer is D. Enzymes, by definition, are proteins (a) that act as catalysts, which means that they affect the rate of chemical reactions (b). This is a process that is vital to the completion of important biological process (c).

Answer 2

d

Answer 3

d