A. Wd miller
B. Leumenhoek
C. Robertson
D. Socranci
Related Mcqs:
- Oral lesions on the tongue and other mucosal surfaces of the oral cavity is caused by the deficiency of_______________?
A. Vit – B1
B. Niacin
C. Vit – C
D. Vit – K - Dry heat destroys microorganisms by_____________?
A. Lysis
B. Oxidation
C. Hydrolysis of DNA
D. Coagulation of proteins - Stratum Germinativum of the oral epithelium is the term given to_______________?
A. Basal cell layer
B. Granular cell layer
C. Spinous cells and granular cells
D. Basal cells and parabasal spinous cells - Electron microscopic examination of the bacterial flora of necrotising ulcerative gingivitis indicates the presence of microorganisms within non-necrotic tissues in advance of other bacteria. The organisms involved are______________?
A. Cocci
B. Spirochetes
C. Bacteriophages
D. Filamentous rods - Inactivated microorganisms are used in the manufacture of which of the following________________?
A. Salk vaccine
B. Tetanus toxoid
C. Sabin’s oral vaccine
D. All of the above - Abscess formation is particularly characteristic of infections with which of the following microorganisms:_____________?
A. Viruses
B. Rickettsiae
C. Streptococci
D. Staphylococci - Acute osteomyelitis is most frequently caused by which of the following microorganisms?
A. Gonococcus
B. Enterococcus
C. Streptococcus
D. Staphylococcus - Which of the following penicillins is given by oral route ?
A. Benzyl penicillin
B. Benzathine penicillin
C. Procaine pencillin
D. Penicillin V / Phenoxymethyl penicillin - Physical sterilization was discovered by__________________?
A. Robert Koch
B. Joeph Lister
C. John Hunter
D. Alexander flemings - All of the following lab tests can be used to distinguish streptococcus mutans from other oral streptococci, except______________?
A. Gram staining
B. Fermentation of mannitol and sorbital
C. Production of intracellular and extracellular adherent polysacharide
D. Colony morphology on saliva agar
