Enzymes Are Necessary for Cells Because

Enzymes are necessary for cells because

A) enzymes slow down chemical reactions that would otherwise occur too quickly to facilitate life.
B) enzymes allow chemical reactions to occur under physiological conditions and within a time frame conducive to life.
C) enzymes allow chemical reactions to occur under physiological conditions.
D) enzymes allow chemical reactions to take place that would otherwise be impossible.
E) enzymes allow chemical reactions to occur quickly enough to facilitate life.