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WorksheetsBDS Biochem 2
Total questions: 20
Worksheet time: 15mins
Classes of enzymes
6
4
3
8
Isozyme forms of lactate dehydrogenase are
3
6
5
9
Which of the following is a marker enzyme of myocardial infarction
Creatine kinase CK2
Lactate dehydrogenase LDH5
Hexokinase
Glucose 6 PO4 dehydrogenase
Which of the following is a non-competitive enzyme inhibitor
Allopurinol
Malonate
Iodoacetate
Methotrexate
Allopurinol is
a non competitive enzyme inhibitor
a competitive enzyme inhibitor
used to treat Gout disease
used to treat hyperuremia
Induced fit model for enzyme action was proposed by
Fisher
Michaelis Menten
Koshland
Singer
Gout is a disease marked by increased level of
Urea
Uric acid
Creatinine
Creatine
End product of purine catabolism is
Urea
Uric acid
Creatinine
Hippuric acid
Km value is
Enzyme concentration at half of the maximum velocity of the reaction
Substrate concentration at half of the maximum velocity of the reaction
Inhibitor concentration at half of the maximum velocity of the reaction
Co- enzyme concentration at half of the maximum velocity of the reaction
The influence by substrate concentration factor on enzyme activity yields which type of curve?
Sigmoidal
Hyperbolic
Parabolic
Ellipsoidal
Which enzyme catalyses the conversion of fructose 6 PO4 to fructose 1,6 bisphosphate?
Phosphofructokinase 2
Aldolase
Hexokinase
None of the above
Which of the following substances is an inhibitor of the enzyme succinate dehydrogenase?
Arsenite
Fluoride
Malonate
None of the above
The typical curve of an Allosteric enzyme is
Parabolic curve
S curve
Sigmoidal curve
Hyperbolic curve
Which of the following is a positive allosteric modulator of hexokinase enzyme?
ATP
ADP
Glucose 6 PO4
Fructose 6 PO4
Inactive pyruvate dehydrogenase complex becomes active when
Phosphorylated
Dephosphorylated
Diphosphorylated
Bisphosphorylated
The hormone which induces the synthesis of pyruvate kinase in glycolysis pathway is
Glucagon
Thyroxine
Insulin
Growth hormone
The normal activity range of aspartate transaminase in serum is
Upto 20 IU/dL
Upto 40 IU/dL
Upto 40 IU/L
Upto 20 IU/L
Alkaline phosphatase is the marker enzyme of
Hemolytic jaundice
Obstructive jaundice
Latent jaundice
Rickets
Which of the following enzymes is the marker of alcohol abuse?
Lactate dehydrogenase (LDH - 5)
Creatine kinase (CK -3)
Lactate dehydrogenase (LDH - 4)
Gama glutamyl transferase
Which of the following enzymes is used in lysing intravascular clot?
Papain
Urokinase
Streptokinase
Asparaginase
