Salivary amylase is an enzyme in the human body that digests carbohydrates from food. when food mixed with saliva enters the stomach, the action of salivary amylase slows dramatically. which most likely causes salivary amylase enzyme to stop digesting food?

   Acid in the stomach

Explanation: Food digestion begins in the mouth where food is digested, except by chewing, also by the salivary amylase enzyme. The fact that there is a high concentration of acid in the stomach, that is, acidic environment, stops the digestion of food by the salivary enzyme amylase. The usual stomach acidity is between 1 and 2 pH, which is quite acidic. Such acidity causes a change in the structure of the salivary enzyme amylase, which, when it enters the stomach, ceases to have a function for digestion.

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