Discuss the roles of the mouth and the stomach in the digestion of carbohydrate

What will be an ideal response?


The salivary enzyme amylase starts to work in the mouth, hydrolyzing the starch to shorter polysaccharides and to the disaccharide maltose. Because food is in the mouth for a relatively short time, very little carbohydrate digestion takes place there.
Carbohydrate digestion ceases in the stomach. The activity of salivary amylase diminishes as the stomach’s acid and protein-digesting enzymes inactivate the enzyme. The stomach’s digestive juices contain no enzymes to break down carbohydrates. Fibers are not digested, but because they linger in the stomach, they delay gastric emptying thereby creating satiety.

Nutritional Science

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It is important to ask patients if they use herbal remedies because:

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The Special Supplemental Nutrition Program for Women, Infants, and Children was authorized in 1972 as an amendment to the Child Nutrition Act of 1966

a. True b. False Indicate whether the statement is true or false

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Sarah is a healthy 24-year-old woman who is 5' 11" and weighs 178 pounds. Based on this information, her RDA for protein is about ________ grams.

A. 55 B. 75 C. 65 D. 45

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Of the following actions, the most effective way to improve HDL cholesterol levels is to

A) engage in routine exercise. B) lower polyunsaturated fat intake. C) drink green tea. D) lower saturated fat intake.

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