AP BIOLOGY

Detailed explanation-1: -Lipid (fat) digestion begins in the stomach with the aid of lingual lipase and gastric lipase. However, the bulk of lipid digestion occurs in the small intestine due to pancreatic lipase.

Detailed explanation-2: -The body begins breaking down fat in the mouth, using enzymes in saliva . Chewing increases the surface area of foods, allowing the enzymes to break down food more effectively. The most important chemicals that help with fat digestion in the mouth are lingual lipase and phospholipids, which turn fats into small drops.

Detailed explanation-3: -The majority of chemical digestion occurs in the small intestine. Digested chyme from the stomach passes through the pylorus and into the duodenum. Here, chyme will mix with secretions from both the pancreas and the duodenum.

Detailed explanation-4: -The digestion of lipids begins in the oral cavity through exposure to lingual lipases, which are secreted by glands in the tongue to begin the process of digesting triglycerides. Digestion continues in the stomach through the effects of both lingual and gastric enzymes.