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Bios 242 Weekly Reviews Key Concepts And Practice Questions

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BIOS 242 WEEKLY REVIEWS KEY CONCEPTS AND PRACTICE QUESTIONS

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BIOS 242 WEEKLY REVIEWS KEY CONCEPTS
AND PRACTICE QUESTIONS

◉ Beta-lactamase.
Answer: Enzyme produced by bacteria that breaks the beta-lactam
ring of antibiotics, causing resistance to penicillins and some
cephalosporins.


◉ Penicillin.
Answer: Targets cell wall synthesis.


◉ Vancomycin.
Answer: Targets cell wall.


◉ Tetracycline.
Answer: Targets 30S ribosome for protein synthesis.


◉ Azithromycin.
Answer: Targets 50S ribosome.


◉ Fluoroquinolones.
Answer: Targets DNA replication.

, ◉ Sulfonamides.
Answer: Targets folic acid synthesis.


◉ Synthetic drugs.
Answer: Made completely in the laboratory.


◉ Semisynthetic drugs.
Answer: Natural antibiotics that are chemically modified.


◉ Barophiles.
Answer: Organisms that grow best under high pressure.


◉ Halophiles.
Answer: Organisms that require high salt.


◉ Acidophiles.
Answer: Organisms that thrive in acidic environments.


◉ Alkaliphiles.
Answer: Organisms that thrive in basic environments.

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