Answer:
Explained
Step-by-step explanation:
A) Enzymes catalyze reactions by lowering the activation energy necessary for a reaction to occur. The change in shape of the active site of an enzyme so that it binds more snugly to the substrate, induced by entry of the substrate. Induced fit enhances catalysis, as the enzyme converts substrate to product.
I'm not sure about B heh, I hope it helped you a bit..!
Searched it up on google btw.