How do enzymes speed up the rate of biological reactions? A. Enzymes increase the activation energy of the reaction.
B. Enzymes provide a site where reactants can be brought together.
C. Enzymes become reactants and are used up in the chemical reaction.
D. Enzymes change the temperature of the surroundings to be suitable for the
reaction.

I think it decreases the activation energy needed for the reaction to start.

Explanation:

I think that's right but it's not an answer choice.

this is a good question! i'll do some research and come back when i have the answer!

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully