生物课件万20110315（Biology courseware, 10000, 20110315）.docVIP

生物课件Biology courseware, 10000, This article is contributed by hongsenlin2011 Ppt documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view. Composition of the digestive system Digestion and digestion Digestive system composition model Pattern of tooth structure and caries Caries prevention First, brush your teeth every morning and evening, especially when you eat sweets and sweets, brush your teeth every morning and evening, and rinse your mouth after eating. Mouthwash after eating. Two, to eat rich food fiber, during chewing, to eat rich food fiber, during chewing, the teeth are often in a state of friction and brushing teeth, often in a state of friction and washing, which is not easy in the mouth when eating acid fermentation. When eating, it is difficult to ferment and produce acid in the mouth. Three, the discovery of a potential caries, should be treated in a timely manner, and found that there are potential caries, should be treated in a timely manner to prevent dental caries development. Prevent caries development. Digestion of food 1. The concept of digestion: the concept of food partitioning and digestion in the digestive tract: the process of becoming a component that can be absorbed. The process of becoming a component that can be absorbed. 2. Digestion mode: physical digestion and chemical elimination, digestion mode: digestion. 3, enzyme, Digestion of three major nutrients Digest of starch: the digestion of starch: starch, maltose, protein digestion: protein digestion: protein, amino acids, fat digestion: fat digestion: fat? Bile enzyme Glucose Fat particle enzyme Glycerol + fatty acid Digestion of three major nutrients Nutrition, digestion, digestion, digestion, substance, channel, glandular fluid, starch, protein, fat Saliva of oral salivary glands enzyme Digestive end product site Saliva, malt sugar, glucose powder, enzyme, pepsin, amino acid