Enzymes
- Created by: Kimberley
- Created on: 03-06-13 18:15
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- Enzymes
- Biological catalysts that speed up the rate of reactions without changing themselves
- Structure
- Long chains of amino acids folded to produce a specific shape
- Sustrates (other molecules) fit onto the enzymes active site
- Factors that affect enzyme action
- Temperature
- Work best a optimum temp 35-40 C
- Begin to denature after optimum temp - active site changes
- PH
- Different enzymes work best at different pH levels
- Pepsin found in the stomach and works well in acid conditions
- Temperature
- Types
- Protease
- Breaks proteins down into amino acids
- Produced by stomach, pancreas and small intestine
- Lipase
- Digests fats called lipids into fatty acids and glycerol
- Made in pancreas and small intestine
- Carbohydrase
- Breaks down carbs
- Amylase breaks starch down into sugars
- Protease
- In industry
- Biological detergents
- Lipases and proteases break down stains
- Baby foods
- Proteases used to pre digest food making it easier for babies to digest
- Diet products
- Isomerase used to make a fructose - less calories
- Biological detergents
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