Final answer:
The FALSE statement about proteins is that their primary function is energy storage. Proteins mainly provide structural support, act as enzymes, carriers, or hormones, and are composed of amino acids linked by dehydration synthesis into complex structures.
Step-by-step explanation:
The FALSE statement about proteins among the choices provided is A) Their primary function is energy storage. This is incorrect because the main functions of proteins include providing structural support, and acting as enzymes, carriers, or hormones, rather than energy storage, which is primarily the role of carbohydrates and fats. Proteins are indeed composed of amino acids (C) and are formed via dehydration synthesis reactions (E), where water is removed to form peptide bonds linking amino acids together.
Moreover, they have multiple levels of structural organization (D), exhibiting the primary, secondary, tertiary, and quaternary structures, and they can exhibit both hydrophobic and hydrophilic properties (B), depending on the amino acid side chains involved. Proteins have a variety of functions for the cell, including enzymatic activity, structural support, transportation, and hormone regulation. However, their primary function is not energy storage.