Home » Tests » Punjab 11th Class Biology Chapter 3 Enzymes Mcqs Test Online

Punjab 11th Class Biology Chapter 3 Enzymes Mcqs Test Online

Total Question
13 Questions
Total Marks
26 Marks
Total Time
13 Minuts
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Test Name



Ch. 3 # Enzymes

Subject



Biology (11th Class)

Test Type



Mcqs


Punjab 11th Class Biology Chapter 3 Enzymes Mcqs Test Online

Biology Chapter 3 Enzymes Mcqs Test Online 11th Class Punjab

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Question 1 of 13

Biology

1. A essential feature of a competitive inhibitor is its ability to:

Question 1 of 13

Question 2 of 13

2. Which of the following has a coenzyme activity?

Question 2 of 13

Question 3 of 13

3. Erypsin is an example of?

Question 3 of 13

Question 4 of 13

4. Non-competitive inhibitors react with enzymes at:

Question 4 of 13

Question 5 of 13

5. How does an enzyme increase the rate of a reaction?

Question 5 of 13

Question 6 of 13

6. The reaction rate of salivary amylase with starch decreases as the concentration of chloride ions is reduced. Which of the following describe the role of the chloride ions?

Question 6 of 13

Question 7 of 13

7. The graph shows the effect of an enzyme on a reaction.

Which combination identifies X, Y and Z?

X                                                  Y                          Z
ACatalyzed reactionUncatalyzed reactionActivation energy
BCatalyzed reactionUncatalyzed reactionEnergy lost during reaction
CUncatalyzed reactionCatalyzed reactionEnergy gained by product
DUncatalyzed reactionCatalyzed reactionOverall energy change

Question 7 of 13

Question 8 of 13

8. Which graph shows the expected relationship between enzyme activity and substrate concentration?

Question 8 of 13

Question 9 of 13

9. Many enzymes are secreted in inactive form to protect

Question 9 of 13

Question 10 of 13

10. Ribozymes consist of:

Question 10 of 13

Question 11 of 13

11. The catalytic activity of an enzyme is restricted to its small portion called:

Question 11 of 13

Question 12 of 13

12. Combination of apoenzyme and coenzyme produces:

Question 12 of 13

Question 13 of 13

13. The specificity of enzyme is due to their:

Question 13 of 13


 

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