Biochemistry MCQs

Page No. 31

Which of these organelle functions as the digestive system of the cell ?


aMitochondria


bRough endoplasmic reticulum


cGolgi apparatus


dLysomes


View Answer Lysomes

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


aOxidase


bHydrolase


cPeroxidase


dDehydrogenase


View Answer Oxidase

A relatively component of the electron transporting respiratory chain is_____________?


aFlavoprotein


bCytochrome Cl


cUbiquinone


dCytochrome A


View Answer Ubiquinone

Which of the following is false about starvation ketoacidosis ?


aMetabolic acidosis


bSmell of acetone in breath


cBenedict’s test +ve


dRothera’s test is +ve


View Answer Benedict’s test +ve

In Cytochrome p450, P stands for____________?


aStructural proteins


bSubstrate protiens


cPigment


dPolymer


View Answer Pigment

Which of the following about biological membrane is true ?


aLipid moiety is amphipathic


bRigid assembly of protein, lipid and carbohydrate


cSymmertrical bi leaflet structures


dLipid and protein moiety are held by covalent interactions



Normal blood PH is______________?


a6.8 – 7.0


b7.0 – 7.12


c7.38 – 7.4


d7.7 – 8.0


View Answer 7.38 – 7.4

To keep blood PH at 7.4 the HCO3 : H2CO3 ratio should be_____________?


a 20 : 1


b30 : 1


c15 : 1


d1 : 1


View Answer 20 : 1

Most importent compansatory mechanism in metabolic acidosis______________?


aHyperventilation


b Increased NH3 excretion by kidneys


cIncreased urinary phosphates


d Increased HCO3 Production



Which cell organelle contains DNA_____________?


aMitochondrion


bGolgi body


cEndoplasmic reticulum


dCentriole


View Answer Mitochondrion

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