Question

question 2/10
how do enzymes speed up biochemical reactions?
a. they provide the energy to reactants.
b. they absorb energy from the products.
c. they lower the activation energy of the reactions.
d. they increase the number of available reactant particles.

Explanation:

Enzymes are biological catalysts. Catalysts speed up reactions by lowering the activation energy (the minimum energy required for a reaction to occur). They do not provide energy to reactants (A is wrong), absorb energy from products (B is wrong), or increase the number of reactant particles (D is wrong).

Answer:

C. They lower the activation energy of the reactions.