ANATOMY

Detailed explanation-1: -There is significant chemical digestion in the stomach. Two types of glands exist in the gastric mucosa that aid in chemical digestion: oxyntic glands and pyloric glands. Oxyntic glands are located in the body of the stomach and contain parietal cells and chief cells.

Detailed explanation-2: -The chemical digestion of proteins begins in your stomach. Carbohydrate and lipid digestion continues in the stomach (lipids are the chemical components of fat). Your stomach releases gastric juices that begin to break down all of the food you’ve eaten.

Detailed explanation-3: -Mechanical digestion occurs as layers of muscle in the stomach lining contract to produce a mixing and churning motion. Chemical digestion is carried out by stomach juices that contain enzymes and hydrochloric acid. When the food has been turned into liquid form, it moves onto the small intestine.

Detailed explanation-4: -Intestinal brush border enzymes and pancreatic enzymes are responsible for the majority of chemical digestion. The breakdown of fat also requires bile. Most nutrients are absorbed by transport mechanisms at the apical surface of enterocytes.

Detailed explanation-5: -The type of chemical reaction that occurs during digestion is decomposition and exothermic reaction.