Question

Which of the following statements about enzymes are true? Check all that apply. A)generally, an enzyme is specific for a substrate. B) substrate must bind to the active site before a reaction occurs. C) reaction occur at the active site, which usually consists of a crevice on the surface of the enzyme. D) an enzyme yields a specific product whereas a nonbiological catalyst may produce more than one product, and side reactions may occur. E) both nonbiological catalysts and enzymes show reaction specificity.

Answer 1

I believe they are all true except for E.

Answer 2

Enzymes have an optimum temperature and optimum pH where they are the most active.
Enzymes only bond with substrates that fit perfectly with their active sites.
Enzymes can be denatured by extreme heat.
Enzymes remain chemically unchanged at the end of the reaction they catalysed.