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alpha-amylase
polysaccharides
Polysaccharides such as starch.
Amylose, Amylopectin
Its a chemical change.
This is an example of hydrolosis; a decoposition using water, or H2O.
In the mouth. Salivary Amylase breaks down alpha (1,4) bond of glycogen.
mechanical digestion
By definition mechanical digestion is a physical part of digestion.
no
a chemical change
Chemical property