🔍
Bacteria develop tetracycline resistance by the
following mechanisms except:
A. Losing tetracycline concentrating mechanisms
B. Elaborating tetracycline inactivating enzyme
C. Synthesizing a ‘protection protein’ which
interferes with binding of tetracycline to the
target site
D. Actively pumping out tetracycline that has
entered the cell
0 like 0 dislike

1 Answer

B. Elaborating tetracycline inactivating enzym
0 like 0 dislike

Related questions

Bacteria become erythromycin resistant by the following mechanisms except: A. Becoming less permeable to erythromycin B. Elaborating an erythromycin esterase enzyme C. Elaborating a protection ... the erythromycin binding site D. Altering the ribosomal binding site through a methylase enzyme
Answer : C. Elaborating a ‘protection protein’ which blocks the erythromycin binding site...

View solution
0 like 0 dislike
1 answer

Mammalian cells are not inhibited by low concentrations of tetracyclines that inhibit sensitive microorganisms because: A. Host cells lack active transport mechanism for tetracyclines B. Host cells actively pump out ... host cells has low affinity for tetracyclines D. Both A' and C' are correct
Answer : D. Both ‘A’ and ‘C’ are correct...

View solution
0 like 0 dislike
1 answer

Select the antibiotic which inhibits bacterial protein synthesis by interfering with translocation of elongating peptide chain from acceptor site back to the peptidyl site of the ribosome so that ... chain is prematurely terminated: A. Chloramphenicol B. Erythromycin C. Tetracycline D. Streptomycin
Answer : B. Erythromycin...

View solution
0 like 0 dislike
1 answer

The most common mechanism of development of resistance to fluoroquinolones is: A. Chromosomal mutation altering affinity of target site B. Plasmid transfer C. Acquisition of drug destroying enzyme D. Acquisition of alternative metabolic pathway
Answer : A. Chromosomal mutation altering affinity of target site...

View solution
0 like 0 dislike
1 answer

The polyene antibiotics act by: A. Inhibiting fungal cytochrome P450 enzyme B. Binding to ergosterol and creating micropores in fungal cell membrane C. Inhibiting fungal DNA synthesis D. Disorienting microtubules in fungal cells
Answer : B. Binding to ergosterol and creating micropores in fungal cell membrane...

View solution
0 like 0 dislike
1 answer

50.5k questions

47.1k answers

240 comments

7.0k users