Question

all of the following are true facts about enzymes except a all living cells have enzymes. b life would not be possible without enzymes. c enzymes can speed chemical reactions by hundreds to billions of times. d there are a few types of enzymes, but they each perform many types of reactions.

Explanation:

Enzymes are highly specific. There are many types of enzymes, and each typically catalyzes a specific or a few related reactions. Options A, B, and C are correct facts about enzymes. All living cells have enzymes which are crucial for life - they speed up chemical reactions significantly.

Answer:

D. there are a few types of enzymes, but they each perform many types of reactions