Enzynies that catalyze the transfer of groups within molecule are called_________________?
Correct answer: A. Isomerases
- A. Isomerases
- B. Lyases
- C. Transferases
- D. Ligases
Explanation
Isomerases catalyse intramolecular rearrangements, transferring a group from one position to another within the same molecule. Transferases transfer functional groups between separate molecules, while ligases join molecules using energy and lyases add or remove groups without hydrolysis. The likely mistake is choosing transferases because the word transfer appears in the enzyme description.
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About Enzymes as Biocatalysts
Enzymes are protein or RNA biocatalysts that lower activation energy without being consumed, and their active sites bind specific substrates. The topic covers the lock and key and induced fit models, effects of temperature, pH and substrate concentration, cofactors, enzyme specificity, and competitive versus non-competitive inhibition.
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