Which one of the following statements is incorrect ?

  • Option 1)

    The competitive inhibitor does not affect the rate of breakdown of the enzyme-substrate complex.

  • Option 2)

    The presence of the competitive inhibitor decreases the Km of the enzyme for the substrate.

  • Option 3)

    A competitive inhibitor reacts reversibly with the enzyme to form an enzyme-inhibitor complex.

  • Option 4)

    In competitive inhibition, the inhibitor molecule is not chemically changed by the enzyme.

 

Answers (1)

As we discussed in

Competitive Inhibitor -

When the chemical inhibitor closely resembles the substrate in its molemolec structure and inhibits the activity of enzyme is konwn as Competitive Inhibitor.

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 Competetive inhibitor mimics substrate and decreases the Km of the enzyme for the substrate.


Option 1)

The competitive inhibitor does not affect the rate of breakdown of the enzyme-substrate complex.

Incorrect option

Option 2)

The presence of the competitive inhibitor decreases the Km of the enzyme for the substrate.

Correct option

Option 3)

A competitive inhibitor reacts reversibly with the enzyme to form an enzyme-inhibitor complex.

Incorrect option

Option 4)

In competitive inhibition, the inhibitor molecule is not chemically changed by the enzyme.

Incorrect option

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