In living systems, what is needed for chemical reactions to occur at an efficient pace?

Water

Oxygen

Enzymes

Proteins

Enzymes are needed for chemical reactions to occur at an efficient pace.

Answer: Option C

Explanation:

Enzymes are one form of proteins that control synthetic responses yet are themselves unaltered by the chemical reaction. Since they're regularly required to begin or accelerate a response, it also called as catalyst.

Without proteins, numerous biochemical responses would be vigorously wasteful. It makes bonds with at least one of the reactants, or substances that are changed during the response, to form the product.

These bonds lessen the measure of vitality expected to start the reaction, which accelerates the speed of the reaction to complete it in less span of time.

enzymes speed up the process