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BIOS242/ BIOS 242 LAB PRACTICUM: (NEW 2025/ 2026 UPDATE) FUNDAMENTALS OF MICROBIOLOGY | QS & AS| GRADE A| 100% CORRECT - CHAMBERLAIN $7.99
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BIOS242/ BIOS 242 LAB PRACTICUM: (NEW 2025/ 2026 UPDATE) FUNDAMENTALS OF MICROBIOLOGY | QS & AS| GRADE A| 100% CORRECT - CHAMBERLAIN
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BIOS242/ BIOS 242 LAB PRACTICUM: (NEW 2025/ 2026 UPDATE) FUNDAMENTALS OF MICROBIOLOGY | QS & AS| GRADE A| 100% CORRECT - CHAMBERLAIN BIOS242/ BIOS 242 LAB PRACTICUM: (NEW 2025/ 2026 UPDATE) FUNDAMENTALS OF MICROBIOLOGY | QS & AS| GRADE A| 100% CORRECT - CHAMBERLAIN BIOS242/ BIOS 242 LAB PRACTICUM: ...

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  • January 3, 2025
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  • 2024/2025
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BIOS




BIOS242/ BIOS 242 LAB PRACTICUM: (NEW 2025/
2026 UPDATE) FUNDAMENTALS OF MICROBIOLOGY | QS &
AS| GRADE A| 100% CORRECT - CHAMBERLAIN


1. Special Stain: Targets specific structures (e.g., endospores, flagella). -

Examples: Endospore stain, Capsule stain.


2. Pasteurization Purpose: Reduces microbial load to prevent food

spoilage and enhance safety.


3. Pasteurization Process (Labster): LTLT Pasteurization :Low

Temperature, Long Time: 63°C for 30 minutes.

HTST Pasteurization: High Temperature, Short Time: 72°C for 15 seconds.

UHT Pasteurization: Ultra-High Temperature: 135°C for 2-5 seconds.


4. Food spoilage: Caused by microbial toxins, enzymes, and fermentation.

5. Purpose of Streak Plate Method: Purpose: To isolate pure bacterial

colonies for study.

Process:

Streak a small sample onto agar using a sterilized loop.



BIOS242/ BIOS

, 2
BIOS



Spread the inoculum into different sections to separate cells.

Isolated cells grow into distinct colonies.


6. HEPA Filters: Function: High-Efficiency Particulate Air filters remove

99.97% of particles e 0.3 microns. Used in BSL-3 and BSL-4 labs.

Filters microbes and particulates using synthetic fibers or fiberglass


7. Bacterial Multiplication and Doubling Time: Process: Bacteria

reproduce by binary fission.

Doubling Time: The time it takes for a bacterial population to double..


8. Growth Curve Stages: Includes Lag Phase, Log Phase/ Exponential

phase, Stationary Phase, and Death Phase.


9. Lag Phase: Cells adjust to the environment; no division occurs.

10. Log Phase/Exponential growth: The Log or Exponential Phase of the

Growth Curve Will Continue as Longas Environmental Conditions and

Nutrition are Favourable.




BIOS242/ BIOS

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