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Questions and Answers
Which of the following is an example of an antimicrobial agent obtained from a fungus?
Which of the following is an example of an antimicrobial agent obtained from a fungus?
- Penicillin (correct)
- Gentamicin
- Quinolones
- Bacitracin
Antiseptics are used on living tissues to kill or inhibit microorganisms.
Antiseptics are used on living tissues to kill or inhibit microorganisms.
False (B)
Name one class of antimicrobial agents that is synthesized in pharmaceutical laboratories.
Name one class of antimicrobial agents that is synthesized in pharmaceutical laboratories.
Quinolones
Antiviral agents are used to treat __________ infections.
Antiviral agents are used to treat __________ infections.
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Match the following sources of antimicrobial agents with their respective examples:
Match the following sources of antimicrobial agents with their respective examples:
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Study Notes
Antimicrobial Agents
- Chemical substances that either kill or inhibit the growth of microorganisms.
- Include subgroups: antibacterials (antibiotics), antifungals, antiparasitic, and antiviral agents.
- Can be sourced from microorganisms, synthesized in laboratories, or produced using recombinant DNA technology.
Antimicrobial Agent Uses
- Internal and external uses:
- Antibiotics, antifungals, antiparasitic, and antiviral agents.
- External use only:
- Antiseptics and disinfectants, used to kill or inhibit microorganisms on nonliving objects.
Antimicrobial Agent Sources
- Microorganisms:
- Fungi: Penicillins, cephalosporins.
- Bacteria: Bacitracin, polymyxins, and gentamicin.
- Chemical synthesis:
- Quinolones.
- Semisynthesis:
- Part of the molecule is produced by fermentation using microorganisms.
- Product is then further chemically modified.
- Example: Amoxicillin.
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