AP BIOLOGY

Detailed explanation-1: -All the biomolecules will end up as a precursor or after the completion of the digestion process. Proteins: Protein is broken down by various proteolytic enzymes in the stomach and duodenum such as pepsin, trypsin, chymotrypsin, dipeptidase, exopeptidase, etc. end products are amino acids.

Detailed explanation-2: -Pepsin is secreted by peptic or chief cells as proenzyme pepsinogen then in the duodenum by trypsin, chymotrypsin, dipeptidase, exopeptidase, etc. So, the chemical digestion of protein starts in the stomach and ends in the small intestine. Hence, the end product of protein digestion is amino acids.

Detailed explanation-3: -Protease breaks down proteins into amino acids.

Detailed explanation-4: -The process starts in your mouth with the mechanical digestion of food: Your teeth cut, tear, and mash the steak into smaller particles, mixing it with saliva to form a semisolid lump. Once swallowed, the pulverized beef moves down your esophagus and lands in your stomach.

Detailed explanation-5: -When you eat food, the body’s digestive system breaks down dietary protein into individual amino acids, which are absorbed and used by cells to build other proteins and a few other macromolecules, such as DNA.