Antimicrobial Chemotherapeutic Agents Which of the following may cause resistance to penicillin? 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 Alteration or lack of penicillin-binding proteins All of these Impermeability of cell envelope ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents Which of the following drugs involves modification of the drug by enzymatic modification or degradation of its active element to alter its/their resistance? Aminoglyosides All of these Pencillins Choloramphenicol Aminoglyosides All of these Pencillins Choloramphenicol ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents Amphotericin B and polymyxin interfere with cell wall synthesis DNA function cell membrane function protein synthesis cell wall synthesis DNA function cell membrane function protein synthesis ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents The antibiotics not having good activity against Enterobacteriaceae is trimethoprim-sulphamethoxazole ciprofloxacin cefoxitin clindamycin trimethoprim-sulphamethoxazole ciprofloxacin cefoxitin clindamycin ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents The penicillin stable in gastric acid and suitable for oral administration is methicillin carbenicillin pencillin-G closacillin methicillin carbenicillin pencillin-G closacillin ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents Polyene antibiotics are small ring structures β-lactam - thiazolidine ring large ring structures any of these small ring structures β-lactam - thiazolidine ring large ring structures any of these ANSWER DOWNLOAD EXAMIANS APP
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