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A substance unrelated to substrate rever...

A substance unrelated to substrate reversibly changes the activity of an enzyme. It is

A

Competative inhibitor

B

Non-competitive inhibitor

C

Catalytic inhibitor

D

Alostene modulator

Text Solution

Verified by Experts

The correct Answer is:
D
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When the inhibitor closely resembles the substrate in its molecular structure and inhibits the activity of the enzyme, it is known as____

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Knowledge Check

  • A substance unrelated to substrate reversibly changes the activith of an enzyme. It is

    A
    Competitive inhibitor
    B
    Allosteric subunit
    C
    Allosteric modulator
    D
    None of the above.

  • A substance unrelated to substrate but capable of reversibly changing activity of enzyme by binding to a site other than active site is called

    A
    Competitive inhibitor
    B
    Non-competitive inhibitor
    C
    Catalytic inhibitor
    D
    Allosteric modulator/inhibitor

  • An enzyme inhibitor when closly resembles the substrate in it's structure and inhibits the activity of enzyme, it is known as :-

    A
    Non competitive inhibitor
    B
    Competitive inhibitor
    C
    Allosteric inhibitor
    D
    Irreversible inhibitor

    • Similar Questions

    Explore conceptually related problems

    Arrange the steps of catalytic action of an enzyme in order an choose the right option (A) The enzyme releases the products of the reaction and the enzyme is free to bind to another substrate (B) The active site of enzyme is in close proximity of the substrate and breaks the chemical bonds of the substrate (C) The binding of substrate induces the enzyme to alter its shape fitting more tightly around the substrate (D) The substrate binds to the active site of the enzyme fitting into the active site

    Arrange the steps of catalytic action of an enzyme in order and choose the right option:- (A) The enzyme releases the products of the reaction and the free enzyme is ready to bind to another molecule of the substrate (B) The active site of the enzyme, now in close proximity of the substrate breaks the chemical bonds of the substrate and the new enzyme-product complex is formed (C) The binding of the substrate induces the enzyme to alter its shape, fitting more tightly around the substrate (D) The substrate binds to the active site of the enzyme, fitting into the active site

    The steps in catalytic cycle of an enzyme action are given in random order - I. The enzyme releases the products. Now enzyme is free to bind another substrate II. The active sites, now in close proximity of substrate breaks the bond of substrate and E-P complex forms III. Binding of substrate induces the enzyme to alter its shape fitting more tightly around the substrate IV. The substrate binds to the active site of enzyme (i.e. fitting into the active site. The correct order is -

    Substrates bind to the active sites of an enzyme by interaction like

    Assertion : Competitiv inhibitros compete with the natural substrate for their attachment on the active sites of enzymes. Reason : In competitive inhibition, inhibitor binds to allosteric site of the enzyme.

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