Question 1
A reaction is stopped by substance X but can recover when more of the customary ligand is supplied. Substance X is an example of a
◦ irreversible antagonist.
◦ allosteric modulator.
◦ competitive inhibitor.
◦ phosphatase.
◦ covalent modulator.
Question 2
Which is an allosteric modulator?
◦ A substance that has no effect on the affinity of the ligand.
◦ A substance that binds irreversibly.
◦ A substance involved in activation via phosphorylation.
◦ A substance that binds to proteins away from the active site.
◦ A substance that can be displaced by competition at the active site.