B3 - Biotechnology 0.0 / 5 ? BiologyBiotechnology and the use of microbes in industryGCSEEdexcel Created by: kelwoodfordCreated on: 19-06-16 12:08 Define biotechnology Biotechnology is the alteration of natural molecules using science and engineering. 1 of 8 What five conditions must be maintained in a fermenter? -PH -Oxygen -Aseptic tank -Stirrer -Nutrients 2 of 8 Why are microorganisms useful in food production? -They grow rapidly -Can be grown in fermenters in almost any location -They have DNA which is easy to manipulate 3 of 8 What is mycoprotein generally grown from? Fusarium 4 of 8 How are microorganisms used to make yogurt? Bacteria ferment milk, changing the lactose in milk to lactic acid 5 of 8 How do enzymes help make soft centred sweets? The enzyme invertase breaks down the sugar sucrose and into glucose and fructose 6 of 8 What two enzymes are often used in washing powders? Protease and carbohydrase 7 of 8 Why could vegetarians/vegans/etc not eat cheese in the past? The enzyme chymosin was obtained from the stomach of calves but is now found from other microorganisms once genetically modified 8 of 8
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