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Digestion - Coggle Diagram
Digestion
Organs
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Large Intestine: Water and B, and K vitamins are absorbed here. Feces is formed.
Liver
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Bile is produced by the liver and stored in gall bladder. Bile provides mechanical digestion for lipids so that enzymes can break down lipids faster.
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Food absorption (Nutrients are absorbed by villi in small intestine) Villi and microvilli increase surface absorption.
Diffusion
Vitamins, fatty acids and glycerol are absorbed by diffusion. Fatty and glycerol are absorbed from the lacteal.
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Food Digestion
Carbs
Starch is broken down by amylase into maltose and dextrine (Mouth). In small intestine : Maltose is broken down by maltase. Dextrine is broken down by dextrinase. Sucrose is digested by sucrase into glucose and fructose and Lactose is digested by Lactase into glucose and galactose.
Proteins
In stomach: Proteins are broken down to polypeptides by pepsin. In small intestine: Trypsin and chymotrypsin breaks down polypeptides into tripeptides and dipeptides. Peptidase breaks down dipeptides into peptides.
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Enzymes in digestion
For carbs
Amylase, Maltase,Lactase, Sucrase
For proteins
Pepsin, Trypsin, Chymotrypsin, Peptidase
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Types
Mechanical: Muscle contraction and chewing provides mechanical digestion. Mouth and stomach and intestine. Lipids are mechanically digested by bile in small intestine.
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Circulation
From small intestine the nutrients come to the liver by hepatic portal vein and go to heart and lungs to get oxygen and comes back to heart and get pumped to the entire body so that cell can get nutrients to produce ATP by cellular respiration.