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What digestive enzymes are secreted by salivary glands and what substrate do they act...

teresamac's profile pic

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What digestive enzymes are secreted by salivary glands and what substrate do they act on?

I understand amylase a bit...but beyond that, I'm stumped.

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trophyhunter1's profile pic

Posted (Answer #1)

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Saliva contains secretions that are produced in salivary glands. It contains 98% water with electrolytes, mucus, glycoproteins, enzymes and antibacterial compounds. The enzyme amylase in saliva aids in breaking down the polysaccharide starch while its in the mouth. The particular enzyme is called ptyalin. Starch becomes simpler sugars when acted on by saliva and further breaks down while in the small intestine, to glucose, a monosaccharide, or simple sugar. Salivary lipase, a fat enzyme aids newborns in digesting fat because their pancreatic lipase is not yet developed. Lingual lipase starts the digestion of lipids and fats.

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atyourservice's profile pic

Posted (Answer #4)

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lingueal lipase to break down fats

salivary amylase to break down starch 

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