Enzymes are biological catalysts that lower the activation energy needed for reactions to occur. By doing so, they allow reactions to take place at normal body temperatures, which would otherwise be too slow to sustain life. Enzymes are not used up in the process and can catalyze multiple reactions. Therefore, all of the given options are correct.

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Enzymes

Question 4

Multiple Choice

Enzymes

A) allow reactions to occur which would otherwise be very slow.
B) lower the activation energy for biological reactions.
C) help reactions occur at normal body temperatures.
D) take part in a reaction but are not changed.
E) all of the above.

Correct Answer: