Microbiology Lab 1-4 Questions and Answers Already Passed
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Course
Microbiology Lab 1-4
Institution
Microbiology Lab 1-4
Microbiology Lab 1-4 Questions and
Answers Already Passed
What is the purpose of aseptic technique in the microbiology lab?
To prevent contamination of cultures and the environment.
Why should petri dishes be inverted during incubation?
To prevent condensation from dripping onto the ag...
Microbiology Lab 1-4 Questions and
Answers Already Passed
What is the purpose of aseptic technique in the microbiology lab?
✔✔ To prevent contamination of cultures and the environment.
Why should petri dishes be inverted during incubation?
✔✔ To prevent condensation from dripping onto the agar surface.
What is the role of a Bunsen burner in microbiology experiments?
✔✔ To create a sterile environment by producing an upward draft of air.
What is the primary function of a microscope in microbiology?
✔✔ To magnify small microorganisms for observation and study.
Why is it necessary to sterilize equipment before using it in microbiology experiments?
✔✔ To kill any potential microorganisms and prevent contamination.
1
, What is the proper way to dispose of contaminated glassware in the microbiology lab?
✔✔ Place it in a designated broken glass disposal container.
Why should gloves be worn when handling microbial cultures?
✔✔ To protect hands from potential contamination and harmful microorganisms.
What is a Gram stain used for in microbiology?
✔✔ To differentiate bacterial species into Gram-positive and Gram-negative based on their cell
wall structure.
What does a positive result in a catalase test indicate?
✔✔ The presence of the enzyme catalase, which breaks down hydrogen peroxide into water and
oxygen.
What is the purpose of using an inoculating loop in microbiology?
✔✔ To transfer microbial samples from one medium to another in a sterile manner.
What should be done before and after using the microscope?
2
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