Bio 1 role of salivary glands and stomach in digestion

Digestion

The breakdown of the naturally
occurring foodstuffs into smaller, easily
absorbable forms

Salivary α-Amylase

Secreted by: Parotid glands

Salivary α-Amylase

Products: Short oligosaccharide, disaccharides: maltose and isomaltose

Salivary α-Amylase

Action: Hydrolysis of α(1,4) glycosidic bonds

Polysaccharides

Salivary α-Amylase has little digestive action on ?

α(1,6) glycosidic bonds

Salivary α-amylase does not hydrolyze

β(1,4) glycosidic bonds of cellulose

Salivary α-amylase cannot act on

Lingual Lipase

Secreted by the dorsal surface of the tongue (Ebner’s glands)

milk fat

medium- and short-chain fatty acids; such
as

2-monoacylglycerols and fatty acids

The end product of lingual and gastric lipases

Duodenum

Emulsification occurs of lipids ?

Pepsin

Secreted by chief cells of stomach

Pepsin

Acid-stable, endopeptidase

Pepsin

End product: Smaller polypeptides

Renin

Secreted by chief cells of stomach in
neonates and infants

Paracasein

— End product Of renin is

Renin

Formation of milk clot

HCL

Denatures proteins Activates pepsin