Penicillin would be most effective against
A. non-growing bacteria.
B. growing bacteria.
C. Gram-positive bacteria.
D. Gram-negative bacteria.
E. growing bacteria AND Gram-positive bacteria.
Gas gangrene is so named due to the formation of
A. carbon dioxide.
B. oxygen.
C. hydrogen.
D. carbon monoxide.
E. carbon dioxide AND hydrogen
Endotoxin
A. consists of LPS.
B. determines bacterial shape.
C. may have different effects depending on the specific bacterial source.
D. is toxic due to the effects of the peptide side chains.
E.
determines bacterial shape, may have different effects depending on the specific bacterial source, AND is toxic due to the effects of the peptide side chains.
The toxin implicated in C. perfringens toxicity is
A. tetanospasmin.
B. exoenzyme S.
C. alpha-toxin.
D. endoenzyme T.
The cell wall of Gram-negative organisms
A. has a thick peptidoglycan layer.
B. has a thin peptidoglycan layer.
C. is more permeable to various molecules than the Gram-positive cell wall.
D. is characterized by an outer membrane containing LPS.
E. has a thin peptidoglycan layer AND is characterized by an outer membrane containing LPS.
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