Enzymes 0.0 / 5 ? ScienceThe human bodyGCSEAQA Created by: BenBaiton15Created on: 11-05-19 19:19 What is an enzyme? a biological catalyst - speeds up chemical reactions in living organisms. 1 of 8 What are the properties of enzymes? they're all large proteins, they all have an active site and they all work best at a specific temperature (the optimum) 2 of 8 What is the 'lock and key' model? it's a model used to explain how enzymes work. 3 of 8 What are the two parts of the 'lock and key' model? The chemical that reacts (substrate) - key. The enzyme's active site - lock. 4 of 8 What happens to an enzyme when they work in extreme pH or high temperatures? the enzymes denature. 5 of 8 What happens to an enzyme once it's denatured? the enzyme can no longer work. 6 of 8 What are the names of the three digestive enzymes? Amylase, Lipase and Protease 7 of 8 Where is Amylaze produced? salivary glands and the pancreas. 8 of 8
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