digestive system
- Created by: Epic Al
- Created on: 27-06-22 16:36
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- Organisation in animals
- chemistry of food
- carbohydrates are made up of units of sugar
- simple sugars contain only 1 or 2 sugar units
- Complex carbohydrates contain long chains of simple sugar units
- Lipids consist of 3 molecules of fatty acids bonded to a molecule of glycerol
- Protein molecules are made up of long chains of amino acids
- carbohydrates are made up of units of sugar
- catalysts and enzymes
- enzymes are biological catalysts
- Enzymes are proteins, the amino acid chains are folded to create the active side
- substrate bonds to the active site and is catalysed
- metabolism is the sum of all reactions in the cell or body
- Factors affecting enzyme action
- affected by temperature and PH
- High temperature denatures the enzyme
- PH can affect the shape of the active side
- The digestive system
- breakdown of large, insoluble molecules into soluble substances
- digestive enzymes are created by specialised cells
- carbohydrase, amylase, catalase - carbohydrates
- simple sugars
- protease - protein
- amino acids
- lipase - lipids
- fatty acids and glycerol
- chemistry of food
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