Biochemistry MCQs

Page No. 23

Free radicals can be inactivated by the following enzymes EXCEPT__________________?


aGlutathione peroxidase


bCatalase


cSuperoxide dismutase


dMyeloperoxidase


View Answer Myeloperoxidase

The fluid mosaic model of membrane structure was proposed by_______________?


aWatson and Crick


bEdwarg Angle


cG.V Black


dSinger and Nicolson


View Answer Singer and Nicolson

Under metabolic conditions associated with a high rate of fatty acid oxidation liver produces________________?


aGlutamate


bAcetoacetate


cCholesterol


dGlycine


View Answer Acetoacetate

The transmembrane adhesive molecules present in hemi desmosomes which specifically binds to basal lamina glycoprotein laminin are______________?


aIntegrin a6-B4


bThe catenins desmoplakin


ccadherins desmoglein


da and B catenin


View Answer Integrin a6-B4

During phagocytosis, the metabolic process called respiratory burst involves the activation of_____________?


aOxidase


bHydrolase


cPeroxidase


dDehydrogenase


View Answer Oxidase

Which of the following is the best site of absorption of calcium ?


aProximal segment of small intestine


bMiddle segment of small intestine


cAscending colon


dIleum



Transport form of iron is______________?


aTransferrin


bFerritin


cApoferritin


dLactoferrin


View Answer Transferrin

Which is the poorest source of calcium among the following______________?


aRice


bHuman milk


cEgg yolk


dCow’s milk


View Answer Rice

Iron is present in all, EXCEPT______________?


aMyoglobin


bCytochrome


cCatalase


dPyruvate kinase


View Answer Pyruvate kinase

Non polar lipid act as______________?


aElectrical insulators


bIrons


cNon electrical insulators


dElectrolytes


View Answer Electrical insulators

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