Antimicrobial Chemotherapeutic Agents The antibiotics which affords a broad spectrum of antimicrobial coverage against aerobic and anaerobic bacteria, rickettsiae, chlamydiae, and mycoplasmas is gentamicin metronidazole tetracycline vancomycin gentamicin metronidazole tetracycline vancomycin ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents Which of the following may cause resistance to penicillin? Alteration or lack of penicillin-binding proteins All of these Impermeability of cell envelope Production of β-lactamases by bacteria Alteration or lack of penicillin-binding proteins All of these Impermeability of cell envelope Production of β-lactamases by bacteria ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents Polyene antibiotics are small ring structures β-lactam - thiazolidine ring any of these large ring structures small ring structures β-lactam - thiazolidine ring any of these large ring structures ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents Most antibiotics are isolated from aquatic microorganisms viruses soil microorganisms plants aquatic microorganisms viruses soil microorganisms plants ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents The mode of action of polymyxin is to inhibit folic acid synthesis inhibit DNA synthesis injury to the plasma membrane inhibit protein synthesis inhibit folic acid synthesis inhibit DNA synthesis injury to the plasma membrane inhibit protein synthesis ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents The antibiotics not having good activity against Enterobacteriaceae is ciprofloxacin cefoxitin clindamycin trimethoprim-sulphamethoxazole ciprofloxacin cefoxitin clindamycin trimethoprim-sulphamethoxazole ANSWER DOWNLOAD EXAMIANS APP
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