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 6R
Why is a mordant used in the
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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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- 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_forwardWhich Is The More Important Step In Gram Stain?arrow_forwardWhy must young cultures be used when doing a Gram stain?arrow_forward
- In 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_forwardWhat is the purpose of iodine in the gram staining process? Explain.arrow_forwardAre the structural differences between the cell walls of Gram-positive and Gram-negative bacteria responsible in any way for the Gram stain reaction?arrow_forward
- what are the positive and negative results of the endospore stain procedure?arrow_forwardIs heat fixation used on bacterial smears that will undergo a capsule stain or flagella stain procedure? Why or why not?arrow_forwardWhich step is the most crucial or most likely to cause poor results in the Gram stain?arrow_forward
- What 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_forwardwhat is the function of each one of the Gram-stain reagents?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_forward
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