ANATOMY

Detailed explanation-1: -Proteins are broken down into amino acids, also called their building blocks. They are essential for all cells to build new proteins.

Detailed explanation-2: -Once a protein source reaches your stomach, hydrochloric acid and enzymes called proteases break it down into smaller chains of amino acids. Amino acids are joined together by peptides, which are broken by proteases. From your stomach, these smaller chains of amino acids move into your small intestine.

Detailed explanation-3: -True. Proteins are composed of amino acids.

Detailed explanation-4: -The individual amino acids are broken down into pyruvate, acetyl CoA, or intermediates of the Krebs cycle, and used for energy or for lipogenesis reactions to be stored as fats. Trypsin and chymotrypsin are released as inactive proenzymes.

Detailed explanation-5: -Proteins are broken down into amino acids completely in.