Enzymes and digestion
- Created by: Lucy1499
- Created on: 02-04-16 09:11
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- Enzymes and Digestion
- Digestive enzymes pass out of cells in glandular tissue
- They then go into the space inside the gut and become mixed up with the food
- They cut large food molecules into smaller bits
- There are three main groups of digestive enzymes
- Three types of digestive enzymes
- Amylase - starch (substrate), Sugars (product) and it is produced in the salivary glands in the mouth and pancreas
- Protease - protein (substrate), amino acids (product) and it is produced in the pancreas, stomach and small intestine
- Protease - protein - amino acids
- Lipase - lipids (fats and oils) (substrate), fatty acids and glycerol (product) and it is produced in the pancreas and small intestine
- Lipase - lipids (fats) - glycerol and fatty acids
- Mechanical Digestion
- Physical breakdown of large bits of food into smaller ones
- E.g. Teeth
- Chemical Digestion
- The use of enzymes to break down large food molecules into smaller ones
- Stomach acid kills bacteria
- Carbohydrase - carbohydrate - glucose
- Bile - made in the liver, works in the stomach and small intestine
- Protein - biological catalyst that speed up chemical reactions like respiration etc.
- Digestive enzymes pass out of cells in glandular tissue
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