Biochemistry MCQs

Page No. 31

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


aMitochondria

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bRough endoplasmic reticulum

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cGolgi apparatus

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dLysomes

✓


View Answer Lysomes

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


aOxidase

✓


bHydrolase

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cPeroxidase

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dDehydrogenase

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View Answer Oxidase

A relatively component of the electron transporting respiratory chain is_____________?


aFlavoprotein

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bCytochrome Cl

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cUbiquinone

✓


dCytochrome A

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View Answer Ubiquinone

Which of the following is false about starvation ketoacidosis ?


aMetabolic acidosis

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bSmell of acetone in breath

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cBenedict’s test +ve

✓


dRothera’s test is +ve

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View Answer Benedict’s test +ve

In Cytochrome p450, P stands for____________?


aStructural proteins

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bSubstrate protiens

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cPigment

✓


dPolymer

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View Answer Pigment

Which of the following about biological membrane is true ?


aLipid moiety is amphipathic

✓


bRigid assembly of protein, lipid and carbohydrate

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cSymmertrical bi leaflet structures

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dLipid and protein moiety are held by covalent interactions

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Normal blood PH is______________?


a6.8 – 7.0

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b7.0 – 7.12

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c7.38 – 7.4

✓


d7.7 – 8.0

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View Answer 7.38 – 7.4

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


a 20 : 1

✓


b30 : 1

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c15 : 1

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d1 : 1

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View Answer 20 : 1

Most importent compansatory mechanism in metabolic acidosis______________?


aHyperventilation

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b Increased NH3 excretion by kidneys

✓


cIncreased urinary phosphates

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d Increased HCO3 Production

✓



Which cell organelle contains DNA_____________?


aMitochondrion

✓


bGolgi body

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cEndoplasmic reticulum

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dCentriole

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View Answer Mitochondrion

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