There Are a Number of Functional Groups in Biological Molecules

Multiple Choice

There are a number of functional groups in biological molecules.Which statement about functional groups is accurate?

A) Hydroxyl groups are present only in carbohydrates.
B) Aldehyde groups are common in proteins.
C) Amino groups may be found in modified carbohydrates and in proteins.
D) Carboxyl groups are found in small molecules but not in macromolecules.
E) Sulfhydryl groups are important features of fats.