Page 84 - CHAPTER 1 DIGESTION SYSTEM (2).pptx (Ebook Cover)

CHAPTER 2
2.2 Nutrient: protein, carbohydrate, fat, vitamin and mineral
DIGESTION, ABSORPTION

AND METABOLISM OF FAT

1. Fat are difficult for body to digest, absorb and metabolize because fat
and water do not mix

Minimal digestion of fats occurs before they reach the small intestine.
2. Lingual lipase works as an enzyme in the mouth and gastric lipase
acts in the stomach

3. Once fat reach the small intestine, the gallbladder release bile. Bile
acids emulsify fat so that pancreatic lipase and intestinal lipase can
break down triglycerides into their components

4. Once absorbed into the cells of small intestine, triglycerides
are reformed. Shorter-chain fatty acids and glycerol can
travel in the blood, but the longer chain fatty acids, monoglycerides,
triglycerides and cholesterol are wrapped into lipoprotein and
phospholipids to make them water soluble

NUTRITION AND HEALTH 2023
Chapter 1 & 2 76