Enzymes – Online MCQs Test – Biology 9th

1. It works at a low pH i.e. it is highly acidic.

2. In 1958, the induced fit model suggested by:

3. The metabolic activities are always of:

4. Most enzymes work at neutral pH:

5. The point where the enzyme is most active is known as:

6. Enzymes are sensitive to a minor change in:

7. The phenomenon of chemical activity in an organism is called:

8. All enzymes work at their maximum rate at:

9. Enzymes activity occurs within a:

10. Enzymes are biocatalyst, made up of mostly:

11. Reactions of an organism are collectively called:

12. Choose the correct statement regarding look and key model.

13. By inhibitor, the activity of enzymes can be:

14. The point where the enzyme is most active is known as:

15. The minimum amount of energy, a reaction requires to initiate, is called:

16. Select the mismatched:

17. A small portion of enzyme where substrate attaches with enzyme is called:

18. Rate of reaction will increase when temperature:

19. Activity of enzymes can be enhanced by:

20. The protein nature of the enzymes makes them sensitive to: