Unformatted text preview: (long chains of amino acids) to shorter chains o Stomach muscle action mixes and emulsifies fats o large drops to small droplets that stay dissolved. o Exit of food from stomach to small intestine controlled by pylorous (pyloric sphincter) Exit of food SLOWED BY: 1. fiber and/or fat in the diet 2. Stress • In small intestine, sodium bicarbonate (baking soda) from pancreas neutralizes stomach acid and brings mixture to neutral pH • Bile (made in liver, stored in gall bladder) coats fat droplets and keeps them from re-forming large drops • Specialized fat-digesting enzymes called lipases digest fats • Bile absorbed and recycled back to the liver • Starch is digested by pancreatic amylase to simple sugars. • Protein molecules digested to amino acids by proteases...
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- Spring '08
- simple sugars, HCl lowers pH, large drops, coats fat droplets, stomach contract