A. It’s group of lactic acid production bacteria
B. Shows adherence to dental enamel
C. Most common in humans
D. Most common is animals
Related Mcqs:
- 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 - Lancefields classification of B hemolytic streptococcus is based on______________?
A. M Protein
B. Polysaccharide C antigen
C. Type of lipid in cell membrane
D. Physiological properties - Streptococcus is classified based on__________________?
A. M Protein
B. Cultural characteristics
C. Bile Solubility
D. Cell wall carbohydrate - Pneumococus can be differentiated from streptococcus by________________?
A. Type of hemolysis
B. Gram staining
C. Growth characteristics
D. Bile solubility - Streptococcus mutans is considered to be principle etiologic agent of caries because it produces organic acids and it ________________?
A. Forms a gelatinous matrix
B. Metabolizes substrate from saliva
C. Derives energy from enamel constituents
D. Lives symbiolically with lactobacillus - The enzyme glucosyl transferase secreted by Streptococcus mutans sythesizes glucans from_____________?
A. Glucose
B. Fructose
C. Sucrose
D. Lactose - Initiation of caries by streptococcus mutans is by the production of______________?
A. Dextranase and soluble dextran
B. Insoluble dextan and glucosyl transferase
C. soluble dextan and glucosyl transferase
D. None of the above - Most used selective medium for streptococcus mutans is:____________?
A. Mac conkey medium
B. Mitus salivarius bacitracin agar
C. Nutrient agar
D. Tellurite medium - Streptococcus mutans produces an adhesive polymer from sucrose, known as:__________?
A. Levans
B. Lectins
C. Glucans
D. Polyfructans - All the following features of skull of a newborn are true except_____________?
A. Diploe not formed
B. Styloid process has not fused with rest of temporal bone
C. Anterior fontanelle open
D. Mastoid process is of adult size
