Enzymes Questions Set 1

1. An example of ligases is

2. An example of lyases is

3. In reversible non-competitive enzyme
activity inhibition

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

5. Example of an extracellular enzyme is

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

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

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

9. A demonstrable inducer is absent in

10. 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

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

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

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

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

15. A Holoenzyme is

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

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

19. The compound which has the lowest density is

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

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

22. From arachidonate, synthesis of prostaglandins is catalysed by

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

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

25. In reversible non-competitive enzyme
activity inhibition