Small Intestine.
Chemical digestion does not take place in the liver, rather, the liver secretes digestive liquids into the small intestine. The actual digestion takes place in the small intestine.
In chemical Digestion, starch and fat are digested by the enzymes in saliva
In chemical Digestion, starch and fat are digested by the enzymes in saliva
Chemical digestion
pancreatic juice
mechanical digestion - chewing, mixing, churning chemical digestion - breakdown of fat, carbohydrate and proteins by specific enzymes (lipases, amylases, and proteinases respectively)
The brush border of intestinal villi contains various Pep-tidase s. They brake down small Pep-tides into amine acids. Various Bi-sachharidases to spit Maltose, Sucrose and lactose sugars. (Maltese, Sucrase and Lactase are the enzymes.) Small quantity of intestinal lipase to split Fat into glycerol and Fatty acids. So this type of digestion is called as contact digestion and it takes place in small intestine.
Chemical digestion occurs int he stomach where acids break down the food turning it into chyme, and also happens in the mouth where saliva mixed with enzymes break food into bolus. It also occurs in the liver, when it produces bile to break down fat, and the liver also breaks down medicine, and small intestine, the small intestine is where the main chemical digestion occurs, the small intestine absorbs all the nutrients into the blood streams.
small intestine
Fat digestion begins in the small intestine, specifically in the duodenum, with the help of bile produced by the liver and stored in the gallbladder. Bile emulsifies fats into smaller droplets, allowing pancreatic enzymes like lipase to break down fats into triglycerides, fatty acids, and glycerol for absorption into the body.
mechanical digestion is when you are breaking down food almost by hand. you're breaking it down manually. an example of mechanical digestion is chewing. it begins in your mouth and ends once you swallow.
After you've eaten a roast dinner, fill up the tray that held the potatoes with water, and watch as giant globules of oil settle on the surface. Now imagine this taking place in your intestines. To enhance the surface area for enzymes to act upon, emulsification takes place to break these large blobs of fat molecules into smaller blobs. The example above was a simplified, but effective analogy. Digestion is where enzymes break up the individual fat molecules into smaller products, which are then easier to absorb into the blood. Emulsification = breaking down lots of fat molecules into smaller clumps of fat molecules. Digestion = breaking one fat molecule into smaller products.