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Laboratory Experiments in Microbiology (11th Edition)
11th Edition
ISBN: 9780321994936
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Chapter 9, Problem 3CT
Summary Introduction
To determine:
The microscopic appearance of encapsulated Streptococcus if stained with safranin and nigrosine.
Introduction:
When the bacterial cells are in a dormant state, then they form endospores. In dormancy, cells do not undergo
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Chapter 9 Solutions
Laboratory Experiments in Microbiology (11th Edition)
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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- Direct contact with pathogenic microorganisms is the most common cause of hospital-acquired infection. How might a dermal (skin) Staphylococcus infection of a staff member result in a urinary traction infection of a patient? Describe possible pathways of contamination during a normal workday.arrow_forwardMatch the organism in column A to the symptom/manifestation in column B that fits it most appropriately. Use cach description only once. COLUMN A i) Plasmodium falciparum COLUMN B a) Toxic shock syndrome i) Crуpiococсus neоformans ii) Clostridium perfringens iv) Chlamydophila psyttaci v) Clastridioides dificille b) Dental caries c) Newborn meningitis d) Pscudomembranous colitis e) Dysentery vi) Staphylococcus aureus f) Fungal meningitis vii) Entamoeaba histolytica g) Surgical wound infections viii) Streptococcus mutans h) Gas gangrene ix) Streptococcus agalactiae i) Pneumonia acquired from birds x) Pseudomonas aeruginosa j) Malariaarrow_forwardExplain how the body (including cells, organs, organ systems) is affected by the bacterium called Neisseria meningitidis? Are there any long-term effects caused by the bacterium, even after recovery?arrow_forward
- Describe the appearance of the area surrounding the bacterial growth of b.cereus on left and b.megaterium on right.arrow_forwardDescribe the similarities between Streptococcus pneumoniae andStreptococcus viridans.arrow_forwardDiscuss the classifications of streptococcus based on the hemolytic pattern and give an example for each pattern.arrow_forward
- Is Saccharomyces boulardii safe?arrow_forwardDiscuss the Lancefield classification of streptococcus and mention the basis of the classification.arrow_forwardDescribe the microscopic morphology of each sample observed with a Gram stain (S. aureus, P. aeruginosa, B. subtilis and dental plaque). Indicate the Gram reaction of each.arrow_forward
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