Enzymes Questions Set 1

1. The compound which has the lowest density is

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

3. An example of ligases is

4. 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

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

6. In reversible non-competitive enzyme
activity inhibition

7. A demonstrable inducer is absent in

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

9. In reversible non-competitive enzyme
activity inhibition

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

11. 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

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

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

14. From arachidonate, synthesis of prostaglandins is catalysed by

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

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

17. Example of an extracellular enzyme is

18. An example of lyases is

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

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

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

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

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

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

25. A Holoenzyme is