MEDICAL
RECTUM AND ANUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Chemically digests food in the mouth.
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Chemically digests food in the stomach
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Protects the stomach from digesting iteself
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Absorbs nutrients from food so the body has energy.
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Detailed explanation-1: -Chemical digestion in the mouth is minor but consists of salivary amylase (ptyalin, or alpha-amylase) and lingual lipase, both contained in the saliva. Salivary amylase is chemically identical to pancreatic amylase and digests starch into maltose and maltotriose, working at a pH optimum of 6.7 to 7.0.
Detailed explanation-2: -The digestive process starts in your mouth when you chew. Your salivary glands make saliva, a digestive juice, which moistens food so it moves more easily through your esophagus into your stomach. Saliva also has an enzyme that begins to break down starches in your food.
Detailed explanation-3: -Saliva contains a digestive enzyme called salivary amylase, which breaks down starch into sugar. Saliva has many functions in the digestion process as follows: It is used to lubricate the mouth. It helps to swallow the food.
Detailed explanation-4: -Saliva is a mixture of water and substances that help in digestion. Saliva also keeps the mouth and other parts of the digestive system moist. The main function of saliva are: Helps in digestion.