Question

why bile salts emulsify fat​

Answer 1

Hi here is your answer

Bile salt emulsify fat because the huge goubles of fats can not be easily digested, so therefore bile salt emulsify fats

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Answer 2

Answer:

Explanation:

The key issue in the digestion and absorption of fats is one of solubility: lipids are hydrophobic, and thus are poorly soluble in the aqueous environment of the digestive tract.  The digestive enzyme, pancreatic lipase, is water soluble and can only work at the surface of fat globules.  Digestion is greatly aided by emulsification, the breaking up of fat globules into much smaller emulsion droplets. Bile salts and  phospholipids are amphipathic molecules that are present in the bile. Motility in the small intestine breaks fat globules apart into small droplets that are coated with bile salts and phospholipids, preventing the emulsion droplets from re-associating.

The emulsion droplets are where digestion occurs. Emulsification greatly increases the surface area where water-soluble pancreatic lipase can work to digest TAG. Another factor that helps is colipase, an amphipathic protein that binds and anchors pancreatic lipase at the surface of the emulsion droplet.