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9th Class Biology Chapter No.6 ENZYMES MCQs

9th Class MCQs Biology Matriculation Chapter No.6 ENZYMES BISE

Book Name : Biology
Class / Grade : 9th
Level : (Secondary)
Chapter No. : 06
Chapter Name : ENZYMES
Book Publisher : Punjab Text Book Board Lahore 2022-24
MCQ from Text Book : 19
Exams conduct By: Board of Intermediate and Secondary Education Punjab
Note : All MCQ’s questions must be taken in Annual and Supplementary Papers from these MCQ’s.



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Class 9th - Biology Chapter No.06

1 / 19

The active site of an enzyme:

2 / 19

The initial rate of an enzyme catalysed reaction depends on

3 / 19

The values for environmental factors. at which an enzyme functions best is called the:

4 / 19

What is the area of an enzyme called where the chemical reactions occur ?

5 / 19

Enzymes accelerate reactions by_________________ the activation energy needed for the reaction....

6 / 19

The building units of enzymes are:

7 / 19

Which statement about enzyme catalyzed reactions is NOT true?

8 / 19

Which of the following- characters is not true about enzymes ?

9 / 19

Prosthetic groups are:

10 / 19

Almost all enzymes are composed of

11 / 19

What is TRUE about cofactors?

12 / 19

When we add More substrate to an already occurring enzymatic reaction and there is- no increase, in the rate of reaction, what would you predict?

13 / 19

To what category of molecules do enzymes belong?

14 / 19

Which of the following variable is LEAST likely to affect an enzymes rate of reaction?

15 / 19

Enzymes work in:

16 / 19

The first step in the cycle of an enzyme is:

17 / 19

What is TRUE about enzymes?

18 / 19

Which of the following factors can affect enzyme activity?

19 / 19

What happens to an enzyme when it denatures?

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