Which statement about enzymes is accurate?
enzymes are fats that are produced in the body.
enzymes are used up in biochemical reactions in the body.
enzymes are hormones that affect metabolism.
enzymes activate or deactivate many chemical compounds.

"enzymes are fats that are produced in the body".
While they are produced by the body they are not made of fat but are made of protien.

"Enzymes are used up in biochemical reactions in the body."
They are not used up in reactions. They are actived or deactivated based on what the body needs at the time.

"Enzymes are hormones that affect metabolism."
They are not hormones. 

"Enzymes activate or deactivate many chemical compounds."
This one is true. They can help destabilize certian chemical bonds or increase them.

The correct answer is b