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If salivary glands do not work properly, the initial digestion of which food component will be most affected?

Answer and explanation

Correct answer: Starch

The governing concept is chemical digestion in the mouth. Saliva contains salivary amylase, an enzyme that begins breaking starch into simpler sugars, mainly maltose, during chewing. If the salivary glands malfunction, this first stage of starch digestion is reduced or absent, although digestion may continue later in the small intestine. Therefore option A is correct. Fat, minerals and water are not the food components initially digested by salivary amylase.

Related tags

SalivaAmylaseStarchDigestionMouthLife ProcessesWorld Of LivingScience

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