PLEASE HELP WITH SOME BIOLOGY ASAP!! THANK YOU AND GOD BLESS Scientists often say that structure determines function when discussing biologically important molecules. Enzymes fit this description because...

A. Enzymes are uniformly shaped and versatile. The shape never changes.

B. Enzymes exist in many shapes and sizes. The shape of the enzyme is irrelevant and they are used interchangeably.

C. Enzymes are similar to other molecules and can mimic their functions.

D. Enzymes are a specific shape that helps catalyze specific reactions. Once the shape changes, the efficacy of the enzyme changes.