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Consider the diagram below, which displays three velocity concentration curves representing an enzyme reaction. What are the respective interpretations of curves a, b, and c?
a represents a typical enzyme reaction, b indicates competitive inhibition, and c reflects non-competitive inhibition.
a signifies an enzyme influenced by an allosteric modulator, b represents normal enzyme activity, and c denotes competitive inhibition.
a illustrates an enzyme influenced by an allosteric stimulator, b represents the addition of competitive inhibition, and c signifies a typical enzyme reaction.
a represents a normal enzyme reaction, b reflects the addition of a non-competitive inhibitor, and c signifies the addition of an allosteric inhibitor.
Answers (1)
Among the three velocity concentration curves depicted in the given diagram, the following interpretations can be made:
Curve a represents a typical enzyme reaction where the substrate concentration increases, resulting in an increase in the reaction velocity. This curve indicates the normal functioning of the enzyme.
Curve b indicates competitive inhibition. In this case, the presence of a competitive inhibitor interferes with the binding of the substrate to the enzyme's active site, leading to a decrease in the reaction velocity compared to the normal enzyme reaction (curve a).
Curve c represents non-competitive inhibition. Here, the inhibitor binds to a different site on the enzyme, not the active site. This binding reduces the enzyme's overall catalytic activity, resulting in a decrease in the reaction velocity compared to the normal enzyme reaction (curve a).
Therefore, the respective interpretations of curves a, b, and c are: a-normal enzyme reaction, b-competitive inhibition, and c-non-competitive inhibition.
Hence, the correct answer is option 1.
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