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 9, Problem 1CA
Endospores appear as colorless areas in a simple stain and in a
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Chapter 9 Solutions
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
Ch. 9 - What are the Gram reactions of Clostridium and...Ch. 9 - How might a capsule contribute to pathogenicity?...Ch. 9 - Prob. 3QCh. 9 - The flagella stain uses crystal violet, as does...Ch. 9 - How would an endospore stain of Mycobacterium...Ch. 9 - What type of culture medium would increase the...Ch. 9 - Prob. 3CTCh. 9 - Prob. 4CTCh. 9 - Endospores appear as colorless areas in a simple...
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- Are the structural differences between the cell walls of Gram-positive and Gram-negative bacteria responsible in any way for the Gram stain reaction?arrow_forwardHow would a Gram stain distinguish this organism from Neisseria meningitidis?arrow_forwardWhat is the theory about the mechanism of the Gram-stain reaction? provide in paragpraph PLEASE PROVIDE REFERENCES IF POSSIBLE THANKS.arrow_forward
- What staining technique is used here? What is the primary stain, decolorizing agent, and counter stain of this technique? Do we heat fix in here? Describe the organism with the blue color. Describe the organism with the bright pink color. Name the genus of bacteria with bright pink.arrow_forwardWhat technique is used to stain this bacterium? What kind of stain is used? What type of chromophores does this stain use? What is the purpose of this technique? Do we heat fix when performing this technique?arrow_forwardHow would you expect the staining properties of 24-hour culture of Bacillus subtilis or the other Gram-positive bacteria to compare to culture that is 3 to 4 days older?arrow_forward
- what would be the medical significance of finding a positive endospore stain result from bacilli bacteria obtained from a sample of honey that was fed to a baby wtih severe gastrointestinal distress?arrow_forwardWhy do you suppose endospore-forming bacteria are commonly found in the soil? Suppose your unknown bacteria is a Gram-negative rod. You decide to perform an endospore stain, thinking it will help you with the identification of the organism. What will you see, and why?arrow_forwardBacillus subtilis (Gram-positive) and Pseudomonas aeroginosa (Gram-negative) bacteria are heat-fixed on slide and subjected to Gram staining. What do you observe under the microscope when the following steps are skipped? Please explain.a. Staining with safraninb. Staining with Gram iodinec. Decolorizationarrow_forward
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