Anatomical Barriers MCQ

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• Shedding of skin’s epithelial cells in immunity terms is known as__________
  ক

  Degradation

  খ

  Destruction of skin

  গ

  Desquamation

  ঘ

  Deletion of cells
• Which of the following cells perform their activity as anatomical barrier by passive diffusion and osmosis processes?
  ক

  Endothelial cells

  খ

  Epithelial cells

  গ

  Kupffer cells

  ঘ

  Defensins
• Vomiting, Diarrhea, coughing and sneezing also fall under the first line of defence. True or False?
  ক

  True

  খ

  False
• What is the function of lactoperoxidase present in mucus?
  ক

  Degrade bacterial peptidoglycan

  খ

  Bind to iron

  গ

  To generate toxic superoxide radicals

  ঘ

  Secretes an antibody
• What is the function of lactoferrin present in mucus?
  ক

  Degrade bacterial peptidoglycan

  খ

  Bind to iron

  গ

  To generate toxics

  ঘ

  Secretes an antibody
• What is the function of the lysozyme present in mucus?
  ক

  Degrade bacterial peptidoglycan

  খ

  Bind to iron

  গ

  To generate toxics

  ঘ

  Secretes an antibody
• Which of the following immunoglobulin is involved with mucus membranes?
  ক

  IgA

  খ

  IgG

  গ

  IgE

  ঘ

  IgD
• The third line of defence is a part of innate or nonspecific immunity.
  ক

  True

  খ

  False
• Tears, saliva and sweat are called as __________ of immunity system.
  ক

  Physical barriers

  খ

  Chemical barriers

  গ

  Opsonins

  ঘ

  Chemicals of the body
• Skin, lysosome secretion and mucus are the _________
  ক

  First line of defence

  খ

  Phagocytes

  গ

  Opsonins

  ঘ

  Part of adaptive immunity