1. What is the purpose of using a flame during an aseptic technique? What is the importance of maintaining sterilization in a microbiology lab? 2. How does the streak plate technique help in isolating individual colonies of bacteria? Why streak multiple times on one plate? 3. While observing a plate inoculated with bacteria, you observe a white-tan fuzzy growth. What can you interpret from this observation? Explain how this outcome could have occurred. 4. What are three possible errors that could take place as you culture your samples, which could lead to contamination? State three and explain why.
Added by Marina L.
Step 1
This helps to kill any contaminating microorganisms and prevent them from entering the culture, maintaining the purity of the sample. Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 61 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Please help to answer these questions: 2. Why is it necessary to flame the inoculation loop as part of aseptic technique? Is this procedure considered disinfection or sterilization of the loop? Explain your answer. (3 points) 3. Can a pure culture be prepared directly from a mixed-broth or a mixed-slant culture? Explain. (3 points) 5. How do you know that you have used aseptic technique correctly and have achieved a pure culture? (3 points) 10. Describe how discrete colonies can appear from a mixed culture using the streak-plate subculture process. (4 points)
Madhur L.
Answer the following questions: 1. What are two of the most commonly used tools for transferring bacteria? 2. How do you adjust the temperature of the flame in a Bunsen burner? 3. Should you set down the inoculation loop after it has been flamed sterilized? 4. Briefly, explain: a. How to transfer bacteria from a liquid culture to a petri plate. b. How to transfer bacteria from a liquid culture to liquid media c. How to transfer Bacteria from a petri plate to a stab culture d. How to transfer bacteria from a petri plate to a liquid plate
Keemin L.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD