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History of Antibiotics and Characteristics of an Ideal Antimicrobial Agent

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History of Antibiotics and Characteristics of an Ideal Antimicrobial Agent

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Questions and Answers

What is the mechanism of action of nystatin and amphotericin B?

Blocking mitosis or nucleic acid synthesis

Binding with cell membrane sterols (correct)

Interfering with protozoal metabolism

Interfering with sterol synthesis

Which antifungal agent works by blocking mitosis or nucleic acid synthesis?

5-flucytosine (correct)

Miconazole

Nystatin

Amphotericin B

Why are antifungal agents more toxic to the patient?

They bind with cell membrane sterols

They are eucaryotic organisms (correct)

They interfere with protozoal metabolism

They interfere with DNA and RNA synthesis

Which antiprotozoal agent interferes with DNA and RNA synthesis?

Chloroquine Signup and view all the answers

How do antiprotozoal agents usually work?

By interfering with protozoal metabolism Signup and view all the answers

Which antifungal drug is used to treat Aspergillosis and invasive candidiasis?

Amphotericin B Signup and view all the answers

Which drug is used to treat giardiasis among the options provided?

Metronidazole Signup and view all the answers

What is the mechanism of action of griseofulvin as an antifungal agent?

Blocking mitosis or nucleic acid synthesis Signup and view all the answers

Why are antiprotozoal agents usually toxic to the host?

They interfere with DNA and RNA synthesis Signup and view all the answers

Which drug is used to treat malaria among the given options?

Quinine Signup and view all the answers