most of the digestion and absorption takes place in the small intestine.
where does most of the digestion and absorption take place?
small intestine
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
isopods have a simple gut which lacks a midgut section; instead there are caeca connected to the back of the stomach in which absorption takes place. food is sucked into the esophagus, a process enhanced in the blood-sucking parasitic species, and passed by peristalsis into the stomach, where the material is processed and filtered. the structure of the stomach varies, but in many species there is a dorsal groove into which indigestible material is channelled and a ventral part connected to the caeca where intracellular digestion and absorption take place. indigestible material passes on through the hindgut and is eliminated through the anus, which is on the pleotelson.
isopoda