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BIOS 280 LAB| Quiz Questions/ Final Exam Preparation 100% Solved $13.99   Add to cart

Exam (elaborations)

BIOS 280 LAB| Quiz Questions/ Final Exam Preparation 100% Solved

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  • Course
  • BIOS 280
  • Institution
  • BIOS 280

BIOS 280 LAB| Quiz Questions/ Final Exam Preparation 100% Solved

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  • September 18, 2024
  • 12
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BIOS 280
  • BIOS 280
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GOLDTUTORS
BIOS 280 LAB| Quiz Questions/ Final Exam Preparation
100% Solved

T/F: Bacterial and fungal colonies are easily distinguished by their appearance on trypticase

soy agar (TSA) plates Correct Ans-True




T/F: When moving from a low power objective lens to a higher power objective lens, the field

of view that is observed decreases Correct Ans-True




T/F: A turbid broth culture indicates bacterial growth Correct Ans-True




T/F: Heat fixation is an important part of the preparation of a bacterial smear Correct Ans-

True




T/F: Microorganisms are ubiquitous and can be isolated from soil, water, plants, and animals

Correct Ans-True




T/F: A contaminated culture contains two or more known bacterial species Correct Ans-

False

, BIOS 280 LAB| Quiz Questions/ Final Exam Preparation
100% Solved
T/F: Most bacterial cell surfaces are negatively charged and basic stains that are positively

charged easily color the cells Correct Ans-True




What are the reagents needed for the Gram stain procedure? Correct Ans-Iodine, Crystal

Violet, Alcohol, Safarin




T/F: The potassium hydroxide (KOH) or string test distinguishes between Gram-positive and

Gram-negative bacteria Correct Ans-True




T/F: A positive string test indicates a Gram negative bacterium Correct Ans-True




T/F: A coverslip is required to view a Gram stained slide Correct Ans-False




The lens which is located directly above the microscope stage is called the Correct Ans-

objective




If a medium contains an enzymatic digest of casein and soy, it would be considered Correct

Ans-undefined (complex) medium

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