polmyxin, bacitracin, fusidic acid, mupirocin

Question 1

Which is false about bacitracin?
A. inhibits bacterial cell wall growth
B. covers gram +ve strep, staph, Corynebacterium, clostridia
C. cross-reacts w/ clindamycin
D. too toxic for systemic use
E. produced by bacillus subtilis
F. none of the above

Answer 1

correct: C

A. true - inhibits transfer of polysacc, peptidoglycans, lipopolysacc to growing cell wall
B. true
C. false - polymyxin B
D. true - b/c interferes w/ sterol synthesis; also minor skin irritation
E. true