Questions and Answers
What type of reaction do oxidoreductases catalyze?
What do transferases catalyze?
Hydrolases are involved in which type of reactions?
What is the primary function of lyases?
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Isomerases are responsible for which process?
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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.
