the chemical digestion of protein occurs in the mouth.
the chemical digestion of protein occurs in the mouth.
where does the chemical digestion of protein occur?
the mouth
digestion is the first step to lipid metabolism, and it is the process of breaking the triglycerides down into smaller monoglyceride units with the help of lipase enzymes. digestion of fats begin in the mouth through chemical digestion by lingual lipase. ingested cholesterol is not broken down by the lipases and stays intact until it enters the epithelium cells of small intestine. lipids then continue to the stomach where chemical digestion continues by gastric lipase and mechanical digestion begins (peristalsis). the majority of lipid digestion and absorption, however, occurs once the fats reach the small intestines. chemicals from the pancreas (pancreatic lipase family and bile salt-dependent lipase) are secreted into the small intestines to help breakdown the triglycerides, along with further mechanical digestion, until they are individual fatty acid units able to be absorbed into the small intestine's epithelial cells. it is the pancreatic lipase that is responsible for signaling for the hydrolysis of the triglycerides into separate free fatty acids and glycerol units.
lipid metabolism
digestion 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. digestion is a form of catabolism that is often divided into two processes based on how food is broken down: mechanical and chemical digestion. the term mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can subsequently be accessed by digestive enzymes. in chemical digestion, enzymes break down food into the small molecules the body can use.
digestion