Immunoglobulin implicated in atopy and anaphylaxis is_______________?
(A) IgE
(B) IgM
(C) IgG
(D) IgA
Synthesis of antibodies in plasma cells occurs in_________________?
(A) Golgi body
(B) Endoplasmic reticulum
(C) Nucleus
(D) Mitochondria
Which of the following is an enrichment medium________________?
(A) Blood agar
(B) Selenite F Broth
(C) Mac Conkey agar
(D) Nutrient Broth
Example of immune complex hyper-sensitivity reaction is______________?
(A) Atopic allergy
(B) Serum sickness
(C) Transfusion reaction
(D) Contact dermatitis
The best sterilization method for a hand-piece is________________?
(A) Ethylene oxide gas
(B) dry heat
(C) chemical vapour
(D) All of the above
The minimum time required for the sterilization of surgical instruments by moist heat at 134°C is__________________?
(A) 3 minutes
(B) 15 minutes
(C) 30 minutes
(D) 60 minutes
Dark ground microscopy is useful to identify______________?
(A) Mycoplasma
(B) Chlamydiae
(C) Rickettsiae
(D) Spirochaetes
The interaction of antigens with antibodies on the surface of a mast cel leads to degranulation and anaphylaxis. The mast cell granules produce anaphylaxis because they contain________________?
(A) Lysosomes
(B) Proteolytic enzymes
(C) Lymphotoxins
(D) Vasoactive mediators
Bacterial spores are destroyed by_______________?
(A) Boiling at 100°C
(B) Disinfection by hypochlorite solution
(C) Autoclave
(D) Pasteurisation