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6.1: Digestion and Absorption

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Outline the role of peristalsis in the digestive process.

Understanding: The contraction of circular and longitudinal muscle of the small intestine mixes the food with enzymes and moves it along the gut.
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Terms in this set (47)
Proteases are enzymes that hydrolyzes proteins into smaller polypeptides, dipeptides and/or amino acids.

Source: stomach
Substrate: proteins
Product: smaller polypeptides
Optimal pH: 2

Source: pancreas (secreted into small intestine)
Substrate: proteins and smaller polypeptides
Product: dipeptides and/or amino acids
Optimal pH: 7-8
Image: List the source, substrate and product of proteases.

Understanding:  The pancreas secretes enzymes into the lumen of the small intestine.