Have you ever wondered what the difference is between a fat that is liquid and a fat that is solid at room temperature? Let's begin by explaining why room temperature fats are solid or liquid. Fats are liquid or solid according to their chemical make up or how their building blocks are stacked together.
Confidence votes 1.6K. Carbohydrate digestion begins in the mouth, and is broken down with the enzymes in saliva. Protein digestion starts in the stomach, and is broken down with pepsin. Fats are digested in the small intestine using bile and other chemicals.
Protein digestion occurs in the stomach and duodenum in which 3 main enzymes, pepsin secreted by the stomach and trypsin and chymotrypsin secreted by the pancreas, break down food proteins into polypeptides that are then broken down by various exopeptidases and dipeptidases into amino acids.igestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream.