Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Chapter 3, Problem 8R
Summary Introduction
Introduction:
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What is the type of gram stain?
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Chapter 3 Solutions
Microbiology: An Introduction (13th Edition)
Ch. 3 - Fill in the following blanks. 1. 1 m = ________ m...Ch. 3 - Prob. 2RCh. 3 - Prob. 3RCh. 3 - Prob. 4RCh. 3 - Prob. 5RCh. 3 - Why is a mordant used in the Gram stain? In the...Ch. 3 - Prob. 7RCh. 3 - Prob. 8RCh. 3 - Fill in the following table regarding the Gram...Ch. 3 - NAME IT A sputum sample from Calle, a 30-year-old...
Ch. 3 - Through the microscope, the green structures are...Ch. 3 - Prob. 2MCQCh. 3 - Carbolfuchsin can be used as a simple stain and a...Ch. 3 - Prob. 4MCQCh. 3 - Which of the following is not a functionally...Ch. 3 - Which of the following pairs is mismatched? 1....Ch. 3 - Assume you stain Clostridium by applying a basic...Ch. 3 - Prob. 8MCQCh. 3 - In 1996, scientists described a new tapeworm...Ch. 3 - Prob. 10MCQCh. 3 - Prob. 1ACh. 3 - Prob. 2ACh. 3 - Why isnt the Gram stain used on acid-fast...Ch. 3 - Endospores can be seen as refractile structures in...Ch. 3 - In 1882, German bacteriologist Paul Erhlich...Ch. 3 - Laboratory diagnosis of Neisseria gonorrhoeae...Ch. 3 - Assume that you are viewing a Gram-stained sample...
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- With what kind of gram stain do you use heat fixation? What is the purpose of heat fixation? What solution do you use to wash a positive stain? A negative stain?arrow_forwardWhich step in the Gram stain procedure is most prone to error? If done incorrectly, how might that step affect the end result?arrow_forwardWhat is the difference between simple and differential stains? Give an example of a differential stain.arrow_forward
- Can the gram stain be observed using a form of microscopy other than light microscopy? Why or whynot?arrow_forwardThis part of the staining process helps the primary stain to remain in the cell during decolorization. O 1) Secondary stain O 2) primary stain O 3) counterstain O 4) fixing reagent O 5) mordantarrow_forwardWhat is the function of the mordant used in the Gram staining procedure? If the iodine step is skipped, what color are Gram-negative cells observedarrow_forward
- 1) In Gram staining, to what cell structure do the dyes bind? 2) Would it be useful to perform a Gram stain on a mixed culture? Why?arrow_forwardwhat are the positive and negative results of the endospore stain procedure?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_forward
- What are the advantages and disadvantages of gram staining? Thank youarrow_forwardWhy is it essential that the primary stain and the counterstain be contrasting colors in gram-staining?arrow_forwardDescribe the procedure for performing a Gram stain. What is the procedure? How does each component work? (ie. What does the mordant do?)arrow_forward
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