Question

Order these events in lipid digestion. *(Numeric order 1-7)

A. Gastric (stomach) lipase cuts of one fatty acid. (Now there is one free fatty acid, and the glycerol connected to the two other fatty acids).

B. Lingual (tongue) lipase dissolves the fat.

C. Short chain fatty acids go to the liver.

D. The micelles are absorbed in the small intestine.

E. Bile salts, lecithin, and fatty acids combine and make micelles.

F. Pancreatic lipase (works in the duodenum) cuts of another fatty acid. (Now there are two free fatty acids, and the glycerol connected to the remaining fatty acids).

G. Short chain fatty acids enter the bloodstream and long chain fatty acids enter the lymph.

Answer 1

Order is : B , A, F, E , D , G , C

Firstly lingual lipase in mouth act on lipids followed by gastric lipase in stomach.

Then in small intestine, pancreatic lipase act on lipids resulting in their hydrolysis into fatty acids. These cannot cross mucous layer so they combine with bile salts to form micelles and then are absorbed.

Short chain fatty acids enter blood and goes to liver while longer ones enter lymph.