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Statements : Enzymes are protenisns and ...

Statements : Enzymes are protenisns and enrzyme catalyused reactions re called biolgical catalysis .
Explanations : The activity of enzyme as catalyst is increased in presence of vitamins .

A

S is correct but E is wrong .

B

S is worong but E is correct

C

Both S and E are correct and E is correct explanation of (S) .

D

Both S and E are correct but E is not correct explanation of S.

Text Solution

Verified by Experts

The correct Answer is:
D
Both are different facts but treue.
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The activity of enzyme is increased in the presence of certain substances known as co-enzymes or acticators.

Statements : In the presence of promter, the activity of the catalyst is enhanced . . Expabnations : The promter increases the surface area of the catlyst nad thus enhancing the number of active centres .

Knowledge Check

  • The enzyme activity is increased in the presence of certain substances, known as

    A
    isoenzymes
    B
    coenzymes
    C
    subsienzymes
    D
    vitalenzymes

  • Which of the following set is having correct statements for enzyme catalyst? 1. Each enzyme is specific for a given reaction 2. the enzyme activity is maximum at optimum pH 3. The enzymatic activity is increased in presence of certain substances called co - enzymes 4. The favourable temperature range of enzyme activity is between 50-60""^(@)C

    A
    1, 3
    B
    2, 3
    C
    1, 2, 3
    D
    1, 2, 3, 4

  • In the presence of an enzyme, the activation energy of a reaction

    A
    Increases
    B
    Decreases
    C
    Remains same
    D
    Cannot be predicted

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    How the presence of an enzyme affects the activation energy of a reaction?

    Statement: Threshold energy of a reaction is independent of temperature. Explanation: The energy of activation however decreases with increase in temperature.

    (A) A catalyst increases the rate of areaction. (R)In presence of a catalyst, the activation energy of the reaction increases.

    Statements : The activity of catalyst is more or less specific. Explanations : A catalyst for one reaction is not necessary to catlyse the other reaction .

    STATEMENT-1 : A catalyst enhances the rate of a reaction and STATEMENT-2 : The energy of activation of the reaction is lowered in presence of a catalyst.

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