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Biochemistry

Questions covering various aspects of biochemistry including metabolic pathways, laboratory techniques, cell membranes, and protein processing

5 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Heme is synthesised from which of the following molecules?

  1. Succinyl CoA
  2. Glycine
  3. Aminolevulinate
  4. Both 1 and 2
  5. Pyridoxal phosphate
Question 2 Multiple Choice (Single Answer)

Which of the following chemicals is used for cross-linking of acrylamide molecules in SDS-PAGE?

  1. Sodium dodecyl sulphate
  2. Bisacrylamide
  3. Mercaptoethanol
  4. Ammonium persulphate
  5. Butanol
Question 3 Multiple Choice (Single Answer)

Tight junctions found on surface membranes prevent the diffusion of which of the following?

  1. Macromolecules
  2. Glucose
  3. Water
  4. Na+/K+ ions
  5. Mg++ ions
Question 4 Multiple Choice (Single Answer)

Which of the following is synthesised by certain microbes that function as shuttles for the movement of ions?

  1. Diphtheria toxin
  2. Alpha hemolysin
  3. Gramicidin
  4. Aquaporin
  5. Valinomycin
Question 5 Multiple Choice (Single Answer)

The α and β chains of class II MHC in the endoplasmic reticulum are complexed with which of the following?

  1. Invariant chain
  2. Cathepsin
  3. CD4+
  4. Common gamma chain
  5. Zeta-chain
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