Without enzymes chemical reactions necessary for life would not occur at a rate sufficient to sustain life True or False?

Answer 1

Usually, to have a fast chemical reaction, you want high temperatures.

However, it is not favorable to have these high temperatures in cells (for many reasons; ask another question if you want reasons)

Therefore, organisms use enzymes to catalyze reactions.

Essentially, you're achieving the same goal of a fast reaction by using a different mechanism (enzyme vs. high temp).

In sustaining life, you need fast reactions because most reactions occur very very slowly..

The answer to your question is yes..without enzymes chemical reactions necessary for life would not occur at a rate sufficient to sustain life.

Answer 2

True, enzymes are catalysts which only affect the rate of reaction allowing the reaction to occur at a much faster rate than would otherwise be possible.