Enzymes Questions Set 1

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

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

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

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

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

6. In reversible non-competitive enzyme
activity inhibition

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

8. An example of lyases is

9. 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

10. Example of an extracellular enzyme is

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

12. An example of ligases is

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

14. In reversible non-competitive enzyme
activity inhibition

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

16. Non steroidal anti inflammatory drugs, such as aspirin act by inhibiting the
activity 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. The Km of the enzyme giving the kinetic
data as below is

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

20. A Holoenzyme is

21. The compound which has the lowest density is

22. A demonstrable inducer is absent in

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

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

25. From arachidonate, synthesis of prostaglandins is catalysed by