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Biochem test 2 objectives - Chapter 5-6

Biochem test 2 objectives - Chapter 5-6 - Exam II Learning...

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Exam II Learning Objectives 5 - 7 Chapter 5 1. Class Function Reaction Catalyzed 1. Oxidoreductase Catalyse redox reactions Oxidation-reduction in which oxygen and hydrogen are gained or lost 2. Transferases Catalyse transfer of a molecular group from one molecule to another Transfer of functional groups, such as an amino group, acetyl group, or phosphate group 3. Hydrolases Catalyse bond cleavage by the introduction of water Hydrolysis (addition of water) 4. Lysases Catalyse reactions involving the removal of a group to form a double bond or addition of a group to a double bond Removal of groups of atoms without hydrolysis 5. Isomerases Catalyse reactions involving intramolecular rearrangements Rearrangement of atoms within a molecule 6. Ligases/Synthesases Catalyse reactions joining together two molecules Joining of two molecules (using energy usually derived from the breakdown of ATP) 2.
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Activation energy - The minimum amount of energy required to initiate a reaction denoted by E a . Transition state - The point at which the molecules have done exactly half of the change Characteristics of enzymes: 1) biological catalysts 2) not consumed during a chemical reaction 3) speed up reactions from 1000 - 10 17 , with a mean increase in rate of 00,000
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