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Assessment 12

Digestion

QuestionAnswer
How are carbs digested and absorbed?: 1 begins with alpha amylase in the mouth; gets deactivated in the stomach by high pH
How are carbs digested and absorbed?: 2 in small intestine, amylase from the pancreas digests starches into disaccharides that get broken down into monoglycerides
How are carbs digested and absorbed?: 3 monoglycerides, monosaccharides (glucose, galactose and fructose) are absorbed by secondary active transport
How are carbs digested and absorbed?: 4 Smaller peptides are absorbed by receptor-mediated endocytosis
How are carbs digested and absorbed?: 5 Glucose can be converted into fat for storage
How are proteins digested and absorbed?: 1 Starts in the stomach, pepcinogen gets converted into pepcin
How are proteins digested and absorbed?: 2 pepsin breaks into smaller pieces and is absorbed in the small intestine
How are proteins digested and absorbed?: 3 structural or hormonal get converted into amino acids, get absorbed and become part of the amino acid pool
How are proteins digested and absorbed?: 4 these proteins can be used to replace protein in cells
How are proteins digested and absorbed?: 5 can be converted to glucose, NH2 group is removed and combined with NH3 to become ammonia
How are proteins digested and absorbed?: 6 ammonia is converted to urea and excreted
How are fats digested and absorbed?: 1 mechanical digestion involving cheeks, tongue and teeth, salivary amylase and salivary lipase
How are fats digested and absorbed?: 2 continuation of specific chemical digestions that begun in oral cavity
How are fats digested and absorbed?: 3 retropulsion
How are fats digested and absorbed?: 4 non specific chemical digestion: H+ secretion by parietal cells
How are fats digested and absorbed?: 5 specific chemical digestion: (proteins) by pepsin secreted by cheif cells and gastric lipase
How are fats digested and absorbed?: 6 intrinsic factor: secreted by parietal cells, necessary for absorption of B12
How are fats digested and absorbed?: 7 emulsification of fats by bile salts from the liver; sort of mechanical digestion of fats
How are fats digested and absorbed?: 8
Created by: carlypentland