Punjab 11th Class Biology Chapter 3 Enzymes Mcqs Test Online
Questions 13
Total Marks 26
Time 13 Mins

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

Biology 3.0osoioi

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

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3. The specificity of enzyme is due to their:

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Question 4 of 13

4. Erypsin is an example of?

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Question 5 of 13

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

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Question 6 of 13

6. Which of the following has a coenzyme activity?

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7. Combination of apoenzyme and coenzyme produces:

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Question 8 of 13

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

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Question 9 of 13

9. Many enzymes are secreted in inactive form to protect

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Question 10 of 13

10. 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?

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Question 11 of 13

11. Ribozymes consist of:

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Question 12 of 13

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

Biology 3.02Which 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 12 of 13

Question 13 of 13

13. Non-competitive inhibitors react with enzymes at:

Question 13 of 13


 

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