Which of the following is not an example of potent antitumer agents? Erythromycin Sibromycin Anthramycin Neothramycin TRUE ANSWER : ? YOUR ANSWER : ?
Quinolones are bacteriostatic broad-spectrum penicillin derivatives antimetabolites TRUE ANSWER : ? YOUR ANSWER : ?
Polyene antibiotics are small ring structures large ring structures β-lactam - thiazolidine ring any of these TRUE ANSWER : ? YOUR ANSWER : ?
Interference mechanism of ciprofloxacin and norfloxacin is due to their action on cell membrane function cell wall synthesis DNA function protein synthesis TRUE ANSWER : ? YOUR ANSWER : ?
By which of the following means antifungal chemotherapeutic agents may affect fungi? all of these Interfere with normal nucleic acid synthesis Interfere with ergosterol biosynthesis and thus alter the structure of the cytoplasmic membrane as well as the function of several membrane-bound enzymes like those involved in nutrient transport and chitin synthesis Interfere with nuclear division by preventing the aggregation of microtubules needed for mitosis TRUE ANSWER : ? YOUR ANSWER : ?
Novobiocin can be used against all of these Haemophilus gram +ve Staphylococci gram -ve Meningococci & Gonococci TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following may cause resistance to penicillin? Production of β-lactamases by bacteria Alteration or lack of penicillin-binding proteins Impermeability of cell envelope All of these TRUE ANSWER : ? YOUR ANSWER : ?
The susceptibility of a microorganism to antibiotics and other chemotherapeutic agents can be determined by using both (a) and (b) none of these tube dilution technique paper disk plate TRUE ANSWER : ? YOUR ANSWER : ?
The compound(s) which act(s) as metabolic antagonist is/are trimethoprim both (a) and (b) none of these sulphonamides TRUE ANSWER : ? YOUR ANSWER : ?
With which of the following aminoglycosides interfere? Protein synthesis Cell wall synthesis DNA function Cell membrane function TRUE ANSWER : ? YOUR ANSWER : ?