Which of the Following Classes of Compounds is Hydrophilic

Question

Which of the following classes of compounds is hydrophilic?
A) Sugars
B) Fatty acids
C) Amino acids
D) Sugars and amino acids.
E) All of these

Accepted Answer

Sugars and amino acids are both hydrophilic because they contain polar functional groups such as hydroxyl, amino, and carbonyl groups that interact favorably with water molecules. Fatty acids, on the other hand, are hydrophobic because they are composed largely of nonpolar hydrocarbon chains that do not interact well with water.