Question

A cell contains?
A- one enzyme that assists in reactions involving protein substrates and one enzyme that assists in reactions involving substrates that are not proteins.
B- thousands of different kinds of enzymes, each assisting in a different chemical reaction.
C-approximately 100 kinds of enzymes, each assisting in a different chemical reaction.
D- one kind of enzyme that assists in thousands of different chemical reactions.

Answer 1

B, each cell has many different enzymes (that vary depending on the type of cell). Each is specific to a certain type or reaction.

Answer 2

But i think it will b A

Answer 3

A quick Google search supports my assertion. A) would mean there are only 2 enzymes in a cell and that's just not the case.