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Questions and Answers
What type of reaction do oxidoreductases catalyze?
What type of reaction do oxidoreductases catalyze?
What do transferases catalyze?
What do transferases catalyze?
Hydrolases are involved in which type of reactions?
Hydrolases are involved in which type of reactions?
What is the primary function of lyases?
What is the primary function of lyases?
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Isomerases are responsible for which process?
Isomerases are responsible for which process?
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What do ligases synthesize?
What do ligases synthesize?
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Study Notes
Major Classes of Enzymes
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Oxidoreductases
- Catalyze oxidation-reduction (redox) reactions.
- At least one substrate is oxidized, while another is reduced.
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Transferases
- Facilitate group transfer reactions.
- Responsible for transferring functional groups from one molecule to another.
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Hydrolases
- Involved in hydrolysis reactions.
- Cleave C-O, C-N, and C-S bonds by adding water (H2O), contributing OH- and H+ to the bond atoms.
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Lyases
- Break C-C, C-O, C-N, and C-S bonds.
- Action occurs through means other than hydrolysis or oxidation.
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Isomerases
- Rearrange atoms within a molecule.
- Create isomers from the original substance without adding or removing atoms.
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Ligases
- Catalyze the synthesis of C-C, C-S, C-O, and C-N bonds.
- Reactions are coupled with the cleavage of high-energy phosphate bonds from ATP or other nucleotides.
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Description
Test your knowledge on the six major classes of enzymes with this flashcard quiz. Each card features a specific enzyme class along with its definition, allowing for a quick review of important concepts in biochemistry. Perfect for students preparing for exams or anyone interested in the biochemical processes.
