Catalysis Considerations – Enzyme Classification
About the Lecture
The lecture Catalysis Considerations – Enzyme Classification by Kevin Ahern, PhD is from the course Enzymes and Enzyme Kinetics.
Included Quiz Questions
Which of the following occurs in the concerted model?
- R/T flipping occurs independently of the binding of substrate.
- The binding of the substrate causes the enzyme to flip the T/R state.
- The R-state is favored.
- The binding of allosteric effector(s) causes the enzyme to flip states.
Which of the following occurs in the sequential model of catalysis?
- The binding of substrate molecules causes the enzyme to flip T/R states.
- The flipping occurs independently of the binding of the substrate.
- The R-state is favored.
- The binding of the product(s) causes the enzyme to flip states.
Allosteric regulation of enzyme activity involves which of the following?
- Conformational changes in the enzyme by the binding of effector molecules.
- Amino acid sequence changes in the enzyme by the binding of effector molecules.
- Formation of new phosphodiester bonds in the enzyme by the binding of effector molecules.
- Formation of new peptide bonds in the enzyme by the binding of effector molecules.
- Peptide bond breakage in the enzyme by the binding of effector molecules.
Which of the following statements is NOT true?
- According to the concerted model, the binding of substrates favors the equilibrium towards the T state of the enzyme.
- According to the concerted model, an enzyme exists in two states: R-state and T-state.
- The concerted model and sequential model explain the allosteric regulation of enzymes.
- The sequential model states that binding of the substrate to the enzyme subunit facilitates the change of T form to R form.
- In the concerted model, the conformations of all the subunits change simultaneously.
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Author of lecture Catalysis Considerations – Enzyme Classification
Kevin Ahern, PhD
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It is very clearly and enthusiastically explained. You make Biochem easy to understand.
