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 4A
Endospores can be seen as refractile structures in unstained cells and as colorless areas in
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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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- The bacterial cells in the image below were stained with a high concentration of carbolfuschin for an extended period of time (5 minutes) while the slide was heated. The slide was decolorized with a mixture of acid and alcohol. The slide was then counter-stained with methylene blue. What kind of stain does this describe?arrow_forwardContrast the overall cell wall compositions of Gram positive and Gram negative bacteria, and go step-by-step in the procedure of the Gram stain. Describe what is occurring during each step within both Gram-positive cells and in Gram-negative cells. Be sure to include the appearance of each cell type at the end of each step.arrow_forwardwhy is it necessary to employ a spore stain rather than rely on diagnosis of sporing from examination of gram stainarrow_forward
- An acid-fast stain can be used to detect protective coverings found in using light microscopy. organisms incorporating mycolic acid in the cell wall organisms forming endospores organisms with capsules organisms with Gram-negative cell wallsarrow_forwardWhich of the following serves as a counterstain for the gram-stain technique? It also happens to be the counterstain for the endospore staining technique.arrow_forwardWhat 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_forward
- What is the purpose of iodine in the gram staining process? Explain.arrow_forwardHow is the India ink capsule stain an example of a negative stain?arrow_forwardWhy does endospore staining require heating? What chemical component of the endosporesprotects the cell from high temperature and chemical treatment?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_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_forwardif a bacteria under observation in a microscope appears to be blurry, what measures are needed to do in the microscope in order to see and identify it clearly?arrow_forward
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