Enzymes and Mechanism of Enzyme Actions
CHXII14:BIOMOLECULES

324588 Which of the following statements is incorrect?

1 Enzymes are organic catalysts.
2 Enzymes have a very large turnover number.
3 Enzymes action is specific.
4 Enzymes always require a coenzyme in their catalytic action.
CHXII14:BIOMOLECULES

324589 The incorrect statements regarding enzymes are
(I) Enzymes are biocatalysts.
(II) Enzymes are non-specific and can catalyse different kinds of reactions.
(III) Most enzymes are globular proteins.
(IV) Enzyme-oxidase catalyses the hydrolysis of maltose into glucose.
Choose the correct answer from the option given below

1 (II) and (IV)
2 (II), (III) and (IV)
3 (I), (II) and (III)
4 (II) and (III)
CHXII14:BIOMOLECULES

324590 Assertion :
Enzymes increases the rate of a reaction.
Reason :
Enzyme action is inhibited by certain organic molecules called inhibitors.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII14:BIOMOLECULES

324591 Assertion :
In presence of enzyme, substrate molecule can be attacked by the reagent effectively.
Reason :
Active sites of enzymes hold the substrate molecule in a suitable position.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII14:BIOMOLECULES

324588 Which of the following statements is incorrect?

1 Enzymes are organic catalysts.
2 Enzymes have a very large turnover number.
3 Enzymes action is specific.
4 Enzymes always require a coenzyme in their catalytic action.
CHXII14:BIOMOLECULES

324589 The incorrect statements regarding enzymes are
(I) Enzymes are biocatalysts.
(II) Enzymes are non-specific and can catalyse different kinds of reactions.
(III) Most enzymes are globular proteins.
(IV) Enzyme-oxidase catalyses the hydrolysis of maltose into glucose.
Choose the correct answer from the option given below

1 (II) and (IV)
2 (II), (III) and (IV)
3 (I), (II) and (III)
4 (II) and (III)
CHXII14:BIOMOLECULES

324590 Assertion :
Enzymes increases the rate of a reaction.
Reason :
Enzyme action is inhibited by certain organic molecules called inhibitors.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII14:BIOMOLECULES

324591 Assertion :
In presence of enzyme, substrate molecule can be attacked by the reagent effectively.
Reason :
Active sites of enzymes hold the substrate molecule in a suitable position.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII14:BIOMOLECULES

324588 Which of the following statements is incorrect?

1 Enzymes are organic catalysts.
2 Enzymes have a very large turnover number.
3 Enzymes action is specific.
4 Enzymes always require a coenzyme in their catalytic action.
CHXII14:BIOMOLECULES

324589 The incorrect statements regarding enzymes are
(I) Enzymes are biocatalysts.
(II) Enzymes are non-specific and can catalyse different kinds of reactions.
(III) Most enzymes are globular proteins.
(IV) Enzyme-oxidase catalyses the hydrolysis of maltose into glucose.
Choose the correct answer from the option given below

1 (II) and (IV)
2 (II), (III) and (IV)
3 (I), (II) and (III)
4 (II) and (III)
CHXII14:BIOMOLECULES

324590 Assertion :
Enzymes increases the rate of a reaction.
Reason :
Enzyme action is inhibited by certain organic molecules called inhibitors.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII14:BIOMOLECULES

324591 Assertion :
In presence of enzyme, substrate molecule can be attacked by the reagent effectively.
Reason :
Active sites of enzymes hold the substrate molecule in a suitable position.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII14:BIOMOLECULES

324588 Which of the following statements is incorrect?

1 Enzymes are organic catalysts.
2 Enzymes have a very large turnover number.
3 Enzymes action is specific.
4 Enzymes always require a coenzyme in their catalytic action.
CHXII14:BIOMOLECULES

324589 The incorrect statements regarding enzymes are
(I) Enzymes are biocatalysts.
(II) Enzymes are non-specific and can catalyse different kinds of reactions.
(III) Most enzymes are globular proteins.
(IV) Enzyme-oxidase catalyses the hydrolysis of maltose into glucose.
Choose the correct answer from the option given below

1 (II) and (IV)
2 (II), (III) and (IV)
3 (I), (II) and (III)
4 (II) and (III)
CHXII14:BIOMOLECULES

324590 Assertion :
Enzymes increases the rate of a reaction.
Reason :
Enzyme action is inhibited by certain organic molecules called inhibitors.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII14:BIOMOLECULES

324591 Assertion :
In presence of enzyme, substrate molecule can be attacked by the reagent effectively.
Reason :
Active sites of enzymes hold the substrate molecule in a suitable position.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.