Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
12th Edition
ISBN: 9780134605203
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Chapter 5, Problem 1CA
Bacteria can be seen without staining. Why, then, was Koch’s recommendation of fixing and staining important for the discovery of the bacterial causes of diseases?
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Chapter 5 Solutions
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
Ch. 5 - Of what value is a simple stain?Ch. 5 - What is the purpose of heat-fixing the smear?Ch. 5 - Another method of fixing smears is to use methanol...Ch. 5 - In heat-fixing, what would happen if too much heat...Ch. 5 - Methylene blue can be prepared as a basic stain or...Ch. 5 - Prob. 2CTCh. 5 - Bacteria can be seen without staining. Why, then,...Ch. 5 - Quality control staff in a sterilization unit of a...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- When you use a simple stain like Methylene blue, how can you tell between one bacterium and another bacterium?arrow_forwardIn Gram staining method, list the reagents and state their role for each step of the procedure? In preparing bacterial smear, why do we need to pass the slide over the flame?arrow_forwardIn the preparation of a bacterial smear, why is there a need to fix the bacteria to the slide? Aside from passing the slide over a flame, what are the other ways of fixing the bacteria to the slide?arrow_forward
- The acid fast bacterium, Mycobacterium smegmatis, is relatively safe for students to work with because of its thin cell wall. If a gram stain is to be performed on this particular microbe, it often takes the gram stain reaction. Why?arrow_forwardDescribe one error in the staining procedure that would result in a Gram-positive bacterium appearing pink.arrow_forwardwhy is gram staining importantarrow_forward
- Please discuss why staining is important in visualizing microbes under the microscope. What different types of staining methods can be used?arrow_forwardA student is directed to make a simple stain of coli with crystal violet, but got mixed up and used safranin instead. How would their observations be different? Would the information obtained be any different?arrow_forwardAbout the Gram staining technique, explain: What is the purpose of using lugol and alcohol in this type of coloring?arrow_forward
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