Enzymes Questions Set 1

1. 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

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

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

4. A Holoenzyme is

5. A demonstrable inducer is absent in

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

7. The compound which has the lowest density is

8. In reversible non-competitive enzyme
activity inhibition

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

10. Example of an extracellular enzyme is

11. An example of lyases is

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

13. From arachidonate, synthesis of prostaglandins is catalysed by

14. An example of ligases is

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

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

17. In reversible non-competitive enzyme
activity inhibition

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

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

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

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

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

23. 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

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

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