Question

2.) what is the function of an enzyme? *
the catalyst for biochemical reactions.
lowers activation energy to speed up chemical reactions.
has an active site with a specific shape to attach to a substrate.
all of the above

Explanation:

Enzymes are biological catalysts for biochemical reactions. They lower the activation - energy of chemical reactions to speed them up and have an active site with a specific shape to bind to a substrate.

Answer:

D. All of the above