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Antimicrobial Chemotherapeutic Agents

Antimicrobial Chemotherapeutic Agents
The scientist who first discovered the substance penicillin was

Alexander Fleming
Paul Ehrlich
none of these
Joseph Lister

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Antimicrobial Chemotherapeutic Agents
Quinones and related antibiotics are

actinorhodin
mitomycin
tetracyclines
all of these

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Antimicrobial Chemotherapeutic Agents
Which of the following is not β-lactamase-resistant penicillin?

Methicillin
Oxacillin
Carbenicillin
Nafcillin

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Antimicrobial Chemotherapeutic Agents
Bacterial cells susceptible to penicillium can be protected from destruction if the medium in which they are exposed is of

high osmotic pressure
high surface tension
low osmotic pressure
moderate osmotic pressure

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Antimicrobial Chemotherapeutic Agents
Chemotherapeutic agents must

All of these
leave unaltered the host's natural defense mechanisms
be able to come in contact with the parasite by penetrating the cells
prevent/destroy the activity of a parasite

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Antimicrobial Chemotherapeutic Agents
Amphotericin B and polymyxin interfere with

cell membrane function
DNA function
protein synthesis
cell wall synthesis

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