Biochemistry MCQs

Page No. 40

In TCA cycle substrate level phosphorylation occurs at____________?


aSuccinate dehydrogenase


bMalonate reduction


cThiokinase


dNone of the above


View Answer Thiokinase

In TCA cycle, citrate is converted in to after losing a molecule of H2O_____________?


aIsocitrate


bCisaconitate


cOxalocetate


dGlutarate


View Answer Cisaconitate

Which metabolite of TCA cycle is used in detoxification of ammonia in brain_____________?


aAlpha ketoglutarate


bOrnithine


c Oxalocetate


dGlycine


View Answer Alpha ketoglutarate

Phosphofructokinase is the key enzyme of______________?


aGlycolysis


bGluconeogenesis


cBeta oxidation


dTCA cycle


View Answer Glycolysis

An enzyme not involved in glycolysis is______________?


aEnolase


bPhosphoglycero mutase


cAldolase


dGlycerophosphate dehydrogenase



McArdles disease is due to the deficiency of_____________?


aGlucose 1 phosphatase


bGlucose 1,6 phosphatase


cGlucose 6 phosphatase


dMyophosphorylase


View Answer Myophosphorylase

In which type of glycogen storage disease is hyper uricemia a feature ?


aI


bII


cIII


dIV


View Answer I

Galactosemia commonly is due to deficiency of_____________?


aGalactose 1 phosphatase uridyl transferase


bGalactose 1 phosphatase


cGlucose 1 phosphatase


dGlucose 6 phosphatase



Blood glucose level cannot be augmented by mobilization of muscle glycogen due to lack of_____________?


a G-6-P dehydrogenase


b G-6-P phydrogenase


cAldolase


dGlucokinase


View Answer G-6-P phydrogenase

All are true regarding glucose 6 phosphate deficiency except______________?


aHyperuricemia


bHyperglycemia


cDefective cori cycle


dIncreased mobilization of glycogen from liver


View Answer Hyperglycemia

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