Which enzyme is secreted by the pancreas to aid in lipid digestion?

The enzyme that is secreted by the pancreas to aid in lipid digestion is lipase. Lipase is specifically responsible for breaking down triglycerides, which are the main constituents of body fat in humans and other animals, as well as in the diet. The action of lipase results in the conversion of triglycerides into fatty acids and glycerol, making the lipids more easily absorbed by the intestinal cells.

The pancreas releases lipase into the small intestine, where it works in conjunction with bile salts. Bile salts are produced by the liver and help emulsify dietary fats, increasing the surface area for lipase to act effectively. This enzymatic action is crucial for proper digestion and absorption of dietary fats, which are essential for providing energy and supporting various bodily functions.

While amylase assists in carbohydrate digestion, protease is involved in protein digestion, and bicarbonate serves to neutralize stomach acid in the small intestine, none of these serve the purpose of breaking down lipids like lipase does. Thus, lipase is the key enzyme for lipid digestion secreted by the pancreas.