Enzymes and Inhibitors 0.0 / 5 ? BiologyEnzymesUniversityNone Created by: alishaknapmanCreated on: 20-03-19 14:04 Define Activation energy Min amount of energy required to start reaction 1 of 17 Rate of reaction depends on? Frequency of the reactants colliding, Energy of reactants 2 of 17 Define enzyme Biological catalyst 3 of 17 Reactants are referred to as? Substrates 4 of 17 Active site is located where/ Enzyme 5 of 17 What holds enzyme substrate complex together Bonds and electrical attraction. 6 of 17 Define induced fit Enzyme changes shape when binding to substrate 7 of 17 What is a prosthetic group? Non amino acid groups bound to enzymes 8 of 17 What is a cofactor? Inorganic ions 9 of 17 Coenzyme definition A small molecule containing carbon, bound permanently to enzyme 10 of 17 Maximum rate means.... that all enzymes are bound to substrate 11 of 17 Inhibitor definition Molecule that binds to enzyme to reduce rate of reaction. 12 of 17 Examples of permanent irreversible inhibition DIPF or nerve gas, blocking nerve transmission. 13 of 17 How does competitive inhibition work? Substrates compete with inhibitor for binding site 14 of 17 How does non -competitive inhibition work? Binds to a different site altering the active site shape prevents enzyme substrate complexes, if they bind not much product is produced. 15 of 17 What is an isoenzymes enzyme which catalyse same reaction but different properties 16 of 17 When is isoenzymes used For an organism to adjust to temp changes 17 of 17
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