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What is true of most reactants in living things?

AThey do not have the energy needed to react at normal body temperatures.

BEnzymes that help them react do not work at normal body temperatures.

CCatalysts are not required for reactions at normal body temperatures.

DThey have all of the energy needed to react at normal body temperatures.

Verified Answer :

They do not have the energy needed to react at normal body temperatures. I'm pretty sure this is right.

Diatonic254

The answer is; A.

This is why most of these reactions in the body require enzymes to catalyze them. Enzymes work by reducing the activation energy of the reaction otherwise these reactions would occur really slowly spontaneously. Enzymes accelerate the speed of these reactions by factors of up to a million times.


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