Enzymes 4.0 / 5 based on 1 rating ? BiologyEnzymes and digestionIGCSEEdexcel Created by: dulcieeverittCreated on: 23-12-13 13:29 Enzymes are made of ? Proteins 1 of 16 The molecule an enzyme acts on is called the ? Substrate 2 of 16 Each enzyme has a small area on its surface called the ? Active site 3 of 16 You need enzymes because the ? inside organisms are too low Temperature 4 of 16 without catalysts most reactions would be too ? to support life slow 5 of 16 each enzyme ? a different reaction catalyses 6 of 16 Enzymes are ? ? Biological catalysts 7 of 16 the chemical reactions taking place in cells are known as ? reactions Metabolic 8 of 16 pH inside cells is around ? Neutral 9 of 16 An enzyme works best at it's ? _____ ________ Optimum temperature 10 of 16 An enzyme works best at it's _____ __ pH 11 of 16 rate of reaction ? when raising concentration of the substrate or enzyme increases 12 of 16 rate of reaction = ? / time Volume 13 of 16 Function of an enzyme is to catalyse metabolic reactions 14 of 16 after catalysing a reaction the enzyme itself is ? Unchanged 15 of 16 Catalysts are chemicals which speed up reactions without being ? ? themselves used up 16 of 16
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