Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
12th Edition
ISBN: 9780134605203
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 7, Problem 1CA
Considering that it isn’t possible to identity bacteria horn a
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Considering you can’t identify bacteria from a Gram stain, why might a physician perform a Gram stain on a sample before prescribing an antibiotic?
Why is heat-fixed procedure in bacterial smear preparation not ideal for capsular staining?
Briefly, in your own words, describe the steps of the gram staining procedure.
Chapter 7 Solutions
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
Ch. 7 - Why do gram-positive cells more than 24 hours old...Ch. 7 - Can iodine be added before the primary stain in a...Ch. 7 - Prob. 3QCh. 7 - Which step can you omit without affecting...Ch. 7 - Suppose you performed a Gram stain on a sample...Ch. 7 - Prob. 2CTCh. 7 - Human cells can be stained with crystal violet and...Ch. 7 - Considering that it isnt possible to identity...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- List the step-by-step procedure of Gram staining.arrow_forwardIn the preparation of a bacterial smear, why is there a need to fix the bacteria to the slide? Aside from passing the slide over a flame, what are the other ways of fixing the bacteria to the slide?arrow_forwardYou have performed an experiment and your aim is to obtain pure colonies. However, you observe some colony variations and you need to verify that this is not due to contamination, name and describe the staining method would you use to achieve this goal?arrow_forward
- Differentiate the staining procedures. Gram Stain Acid Fast Endospore Capsule Flagella a) Principle b) Characteristic of Bacteria viewed using this stain. (e.g. bacterial type, strain, or targeting particular bacterial feature/s) c) Stain/s Used d) Type of Stain e) Mechanism of Staining (of each stain used) f) Flow of Methodarrow_forwardDefine the term gram staining.arrow_forwardN Please observe the following cells that have been Gram stained. "* 3 E ER $ JO 4 R % 5 6 F G & Y I U 8 00arrow_forward
- In preparing a bacterial smear for staining, heat fixation is done after the smear dries up.a.) Give the purpose of heat fixation.b.) What can be observed in wet mounts or hanging-drop slides that cannot be observed in heat-fixed slides?arrow_forwardWhich of the following is/are true regarding the acid-fast stain? (There may be more than one correct answer.) Non-acid-fast microbes appear blue in a completed acid-fast stain. O Acid-fast cells retain the primary dye after treatment with acid-alcohol. O It is used to identify members of the genus Mycobacterium. V Acid-fast cells appear bright pink/red in a completed acid-fast stain. O If cells are acid-fast, they are gram-negative.arrow_forwardYou receive a bacterial culture in the lab and your job is to figure out information which will be helpful. You are only allowed to use one of the staining methods we practiced. Which one would be the best option? Why? And what will this information help you determine? Explain.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_forwardSince the dyes for the Gram stain are not specific to the bacteria theystain, what mistakes in the procedure could cause an incorrect result?arrow_forwardIn gram staining, could colors other than red be used as a counterstain?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Bacterial Structure and Functions; Author: Osmosis;https://www.youtube.com/watch?v=b15Hy3jCPDs;License: Standard youtube license