Bacitracin blocks the transport of NAG and NAM across the cytoplasmic membrane t
ID: 211725 • Letter: B
Question
Bacitracin blocks the transport of NAG and NAM across the cytoplasmic membrane to the cell wall. Like other antimicrobials that block cell wall synthesis, this would result in weak cell walls and __________.
cell lysis due to the effect of osmotic pressure
Which of the following antimicrobial drugs would likely be useful to treat a methicillin-resistant Staphylococcus aureus infection because it effectively blocks initiation of translation?
mupirocin
Polymyxin is effective against only some Gram-negative bacteria; therefore, it is considered a __________.
the inability to synthesize flagella inhibition of nucleic acid synthesis less protein synthesiscell lysis due to the effect of osmotic pressure
Which of the following antimicrobial drugs would likely be useful to treat a methicillin-resistant Staphylococcus aureus infection because it effectively blocks initiation of translation?
praziquantel azoles oxazolidinonesmupirocin
Polymyxin is effective against only some Gram-negative bacteria; therefore, it is considered a __________.
broad-spectrum drug host-specific drug intermediate-spectrum drug narrow-spectrum drugExplanation / Answer
1.Correct answer is:cell lysis due to the effect of osmotic pressure
Reason:The cell wall becomes weakened and cell lysis occurs that kills the bacteria.
2.Correct answer is:oxazolidinones
Reason:oxazolidinones are drugs that are effective against Gram-positive bacteria that includes methicillin and vancomycin resistant staphylococci.
3.Correct answer is:narrow-spectrum drug
Reason: Narrow spectrum drugs are only effective against gram negative bacteria.
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