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Biochemistry Mcqs

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

  • (A)  Mitochondria
  • (B)  Rough endoplasmic reticulum
  • (C)  Golgi apparatus
  • (D)  Lysomes
Submitted By :Ali Uppal


Submitted By :Ali Uppal


A relatively component of the electron transporting respiratory chain is_____________?

  • (A)  Flavoprotein
  • (B)  Cytochrome Cl
  • (C)  Ubiquinone
  • (D)  Cytochrome A
Submitted By :Ali Uppal


Which of the following is false about starvation ketoacidosis ?

  • (A)  Metabolic acidosis
  • (B)  Smell of acetone in breath
  • (C)  Benedict’s test +ve
  • (D)  Rothera’s test is +ve
Submitted By :Ali Uppal


In Cytochrome p450, P stands for____________?

  • (A)  Structural proteins
  • (B)  Substrate protiens
  • (C)  Pigment
  • (D)  Polymer
Submitted By :Ali Uppal


Which of the following about biological membrane is true ?

  • (A)  Lipid moiety is amphipathic
  • (B)  Rigid assembly of protein, lipid and carbohydrate
  • (C)  Symmertrical bi leaflet structures
  • (D)  Lipid and protein moiety are held by covalent interactions
Submitted By :Ali Uppal


Normal blood PH is______________?

  • (A)  6.8 – 7.0
  • (B)  7.0 – 7.12
  • (C)  7.38 – 7.4
  • (D)  7.7 – 8.0
Submitted By :Ali Uppal


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

  • (A)  20 : 1
  • (B)  30 : 1
  • (C)  15 : 1
  • (D)  1 : 1
Submitted By :Ali Uppal


The main function of mitochondria is______________?

  • (A)  Protein synthesis
  • (B)  Oxidation
  • (C)  Electron transfer
  • (D)  Fat synthesis
Submitted By :Ali Uppal


Cell membrane consists of_________________?

  • (A)  Lipids and proteins
  • (B)  Lipids only
  • (C)  Protein only
  • (D)  None of the above
Submitted By :Ali Uppal