The given figure shows three velocity-substrate concentration curves for an enzyme reaction. What do the curves x, y and z depict respectively?

Options

A. a-normal enzyme reaction, b-competitive inhibition, c- non-competitive inhibition,
B. a-enzyme with an allosteric modulator added, b- normal enzyme activity, c-competitive inhibition
C. a-enzyme with an allosteric stimulator, b-competitive inhibitor added, c-normal enzyme reaction
D. a-normal enzyme reaction, b-non-competitive inhibitor added, c-allosteric inhibitor added

Answer

A

Explanation

c does not touches asymptote, so it is a non– competitive inhibitor. Velocity of "a">"b". So "a" is showing activity of pure enzyme.