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Biochemistry Practice Test Questions: Enzymes
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Biochemistry Practice Test Questions: Enzymes
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25 Questions

1. Different isoenzymes of an enzyme have the same
2. If the substrate concentration is much below the km of the enzyme, the velocity of the reaction is
3. The first pentose formed in HMP shunt is
4. Coenzyme A contains a vitamin which is
5. Glucose is the only source of energy for
6. Carboxylation of acetyl-CoA to malonyl-CoA requires the enzyme:
7. From the Lineweaver-Burk plot 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
8. Glycogenoloysis is increased by
9. UDP glucose is converted to UDP glucurronate, a reaction catalysed by UDP glucose dehydrogenase requires
10. The reaction catalysed by α-ketoglutarate dehydrogenase in the citric acid cycle requires
11. Fatty liver is caused due to accumulation of
12. A carrier molecule in the citric acid cycle is
13. Gaucher’s disease is due to the deficiency of the enzyme:
14. All of the following are iron-containing enzymes except
15. Elevated blood argininosuccinate level is found in
16. Kinetics of an allosteric enzyme are explained by
17. The common precursor in the biosynthesis of triacylglycerol and phospholipids is
18. Albinism is due to deficiency of the enzyme:
19. Carbonic anhydrase is competitively inhibited by
20. Hepatic glycogenoloysis is increased by
21. In glycogenesis a branch point in the molecule is established by the enzyme
22. In acute pancreatitis, the enzyme raised in first five days is
23. Physostigmine is a competitive inhibitor of
24. α-Galactosidase enzyme is defective in
25. Rapoport-Luebering cycle is located in