Bacterial spores are destroyed by_______________?
Bacterial spores are destroyed by_______________? A. Boiling at 100°C B. Disinfection by hypochlorite solutionC. Autoclave D. Pasteurisation
Bacterial spores are destroyed by_______________? A. Boiling at 100°C B. Disinfection by hypochlorite solutionC. Autoclave D. Pasteurisation
The Ig found in exocrine secretions is_____________? A. IgG B. IgD C. IgMD. IgA
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. LymphotoxinsD. Vasoactive mediators
Dark ground microscopy is useful to identify______________? A. Mycoplasma B. Chlamydiae C. RickettsiaeD. Spirochaetes
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
The best sterilization method for a hand-piece is________________? A. Ethylene oxide gas B. dry heat C. chemical vapour D. All of the above
Example of immune complex hyper-sensitivity reaction is______________? A. Atopic allergyB. Serum sickness C. Transfusion reaction D. Contact dermatitis
The chemotactic factor is______________? A. C2a B. C3b C. C4aD. C5a
Steam under pressure in used in ________ sterilization? A. PasteurizationB. Autoclave C. Kochs sterilizer D. hot air oven
The predominant immunoglobulin in saliva is_______________? A. IgA B. IgD C. IgE D. IgG