Enzymes Questions Set 1

1. Non steroidal anti inflammatory drugs, such as aspirin act by inhibiting the
activity of the enzyme:

2. An example of lyases is

3. The compound which has the lowest density is

4. An inducer is absent in the type of enzyme:

5. Enzymes, which are produced in inactive
form in the living cells, are called

6. The kinetic effect of purely competitive
inhibitor of an enzyme

7. An example of ligases is

8. Krabbe’s disease is due to the deficiency
of the enzyme:

9. In reversible non-competitive enzyme
activity inhibition

10. The Km of the enzyme giving the kinetic
data as below is

11. A demonstrable inducer is absent in

12. The enzyme which can add water to a carbon-carbon double bond or remove
water to create a double bond without breaking the bond is

13. Example of an extracellular enzyme is

14. Farber’s disease is due to the deficiency
of the enzyme:

15. Neimann-Pick disease is due to the deficiency of the enzyme:

16. Gaucher’s disease is due to the deficiency
of the enzyme:

17. From the L ineweaver-Burk p lot of Michaelis-Menten equation, Km and Vmax can be determined

when V is the reaction velocity at substrate concentration S,the X-axis experimental data are expressed as

18. Activation or inactivation of certain key regulatory enzymes is accomplished by
covalent modification of the amino acid:

19. Fischer’s ‘lock and key’ model of the enzyme action implies that

20. A synthetic nucleotide analogue, used in organ transplantation as a suppressor of
immunologic rejection of grafts is

21. From arachidonate, synthesis of prostaglandins is catalysed by

22. Fabry’s disease is due to the deficiency of
the enzyme:

23. A sigmoidal plot of substrate concentration ([S]) verses reaction velocity (V) may
indicate

24. A Holoenzyme is

25. In reversible non-competitive enzyme
activity inhibition