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MICR221 Exam Questions With Correct Answers
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MICR221 Exam Questions With Correct Answers How do you tell if bacteria is dead or alive - answerCulturing it on an argar to see if it grows K-type strategist - answerSlow growing Food preserving Longer lasting r-type strategist - answerMuch faster growing bacteria, Wastes food faster than i...

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  • August 29, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • micr221 exam questions with correct answers

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  • Micr 221
  • Micr 221

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MICR221 Exam Questions With Correct
Answers

How do you tell if bacteria is dead or alive - answer✔✔Culturing it on an argar to see if it grows

K-type strategist - answer✔✔Slow growing
Food preserving
Longer lasting

r-type strategist - answer✔✔Much faster growing bacteria,
Wastes food faster than it can reproduce

Latent infection - answer✔✔Dormant infection of virus/bacteria until immune system in
compromised -> lead to full blown infection

What is persistence in bacteria and what are its key features - answer✔✔Ensuring bacteria
sustains food and survives. This is done by:
- Slowly reproducing (k-species)
- forming dormant cells (endospores)

what are dormant cells? - answer✔✔cells that persist even after screening

Possible causes of Persistent Bacterial Infections (2) - answer✔✔Antibiotic Persistence:
Non-Heritable persistent state
Antibiotic Resistance:
Heritable Resistacne

What is Antibiotic Persistence? - answer✔✔Where the bacteria enters a dormant persistent state
to avoid being detected by the antibiotic. (eg: penicillin targets and breaks down bacterial cell
walls. However, it can not target dormant bacterias walls as they are not turning over and
repairing.

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