Biochemistry MCQs

Page No. 40

In TCA cycle substrate level phosphorylation occurs at____________?


aSuccinate dehydrogenase

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bMalonate reduction

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cThiokinase

✓


dNone of the above

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View Answer Thiokinase

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


aIsocitrate

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bCisaconitate

✓


cOxalocetate

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dGlutarate

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View Answer Cisaconitate

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


aAlpha ketoglutarate

✓


bOrnithine

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c Oxalocetate

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dGlycine

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View Answer Alpha ketoglutarate

Phosphofructokinase is the key enzyme of______________?


aGlycolysis

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bGluconeogenesis

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cBeta oxidation

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dTCA cycle

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View Answer Glycolysis

An enzyme not involved in glycolysis is______________?


aEnolase

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bPhosphoglycero mutase

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cAldolase

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dGlycerophosphate dehydrogenase

✓



McArdles disease is due to the deficiency of_____________?


aGlucose 1 phosphatase

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bGlucose 1,6 phosphatase

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cGlucose 6 phosphatase

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dMyophosphorylase

✓


View Answer Myophosphorylase

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


aI

✓


bII

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cIII

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dIV

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View Answer I

Galactosemia commonly is due to deficiency of_____________?


aGalactose 1 phosphatase uridyl transferase

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bGalactose 1 phosphatase

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cGlucose 1 phosphatase

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dGlucose 6 phosphatase

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


a G-6-P dehydrogenase

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b G-6-P phydrogenase

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cAldolase

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dGlucokinase

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View Answer G-6-P phydrogenase

All are true regarding glucose 6 phosphate deficiency except______________?


aHyperuricemia

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bHyperglycemia

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cDefective cori cycle

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dIncreased mobilization of glycogen from liver

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View Answer Hyperglycemia

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