The digestion of starch ceases in the stomach because _____.

Answer stomach acidity alters the shape (denatures) of salivary amylase, an enzyme that digests starch

The acidity of the stomach destroys the shape (denatures) many proteins, including many enzymes. Denaturing a protein both makes it easier to digest and makes sure that normal function of protein hormones in the food you consume do not affect your body.

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