How are fats absorbed in the small intestine
Absorption of fats notes!
Absorption of fats
5.4: Digestion and Absorption of Lipids
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Learning Objectives
- Summarize the steps in lipid digestion and absorption.
- Explain how lipids are used for energy and stored in the body.
Lipids are large molecules and generally are not water-soluble.
Like carbohydrates and protein, lipids are broken into small components for absorption. Since most of our digestive enzymes are water-based, how does the body break down fat and make it available for the various functions it must perform in the human body?
From the Mouth to the Stomach
The first step in the digestion of triacylglycerols and phospholipids begins in the mouth as lipids encounter saliva.
Next, the physical action of chewing coupled with the action of emulsifiers enables the digestive enzymes to do their tasks.
Digestion and absorption of lipids pdfThe enzyme lingual lipase, along with a small amount of phospholipid as an emulsifier, initiates the process of digestion. These actions cause the fats to become more accessible to the digestive enzymes. As a result, the fats become tiny droplets and separate from the watery