Microbiology: With Dis.... - Access (Custom)
4th Edition
ISBN: 9781269937887
Author: BAUMAN
Publisher: PEARSON
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Chapter 4, Problem 9MC
Summary Introduction
Introduction:
Staining is a coloring procedure in which a dye is used to color the specimen in order to highlight the specific structures of the specimens. Based on the requirements of the specimen study, different types of staining procedures were followed. Negative staining is a procedure followed to obtain the accurate morphology of a cell, as it stains only the background and not the specimens.
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Why are staining methods used in microbiology? Choose all that apply
A. Staining results can have medical implications for an infected
B. To clearly see the internal structures of the bacteria
C. The stains can be used to dinginuish between bacteria type
D. It is easier to very small microscope.
A capsule stain is kind of:
A Simple and Negative Stain
B Differential and negative stain
C Simple Stain
D Differential stain
E Negative Stain
The specimen for an electron microscope is always a. stained with dyes c. killed b. sliced into thin sections d. viewed directly
Chapter 4 Solutions
Microbiology: With Dis.... - Access (Custom)
Ch. 4 - Prob. 1TMWCh. 4 - Why is a Gram-negative bacterium colorless but a...Ch. 4 - Why didnt Linnaeus create taxonomic groups for...Ch. 4 - Necrotizing Fasciitis Fever, chills, nausea,...Ch. 4 - Why is magnification high and color absent in an...Ch. 4 - Prob. 1MCCh. 4 - Prob. 2MCCh. 4 - Prob. 3MCCh. 4 - Curved glass lenses _________ light. a. refract b....Ch. 4 - Prob. 5MC
Ch. 4 - Prob. 6MCCh. 4 - Prob. 7MCCh. 4 - Prob. 8MCCh. 4 - Prob. 9MCCh. 4 - In the binomial system at nomenclature, which term...Ch. 4 - Prob. 1FIBCh. 4 - Prob. 2FIBCh. 4 - Prob. 3FIBCh. 4 - Fill in the Blanks 4. ___________ refers to...Ch. 4 - Fill in the Blanks 5. Cationic chromophores such...Ch. 4 - Prob. 1VICh. 4 - Label the microscope.Ch. 4 - Prob. 1SACh. 4 - Critique the following definition of magnification...Ch. 4 - Prob. 3SACh. 4 - Put the following substances in the order they are...Ch. 4 - Prob. 5SACh. 4 - Prob. 6SACh. 4 - Prob. 7SACh. 4 - Prob. 8SACh. 4 - Miki came home from microbiology lab with green...Ch. 4 - Why is the definition of species as successfully...Ch. 4 - With the exception of the discovery of new...Ch. 4 - Prob. 4CTCh. 4 - Prob. 5CTCh. 4 - In what ways are the Gram stain and the acid-fast...Ch. 4 - Prob. 7CTCh. 4 - Prob. 8CTCh. 4 - Why is the genus name Coccus placed within...Ch. 4 - A clinician obtains a specimen of urine from a...Ch. 4 - Using the following terms, fill in the following...
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- The broth culture of Bacillus subtilis showed growth even after extended heating in a waterbath, while Serratia marcescens did not. This is due to: a. Bacillus subtilis is Gram-positive, while Serratia marcescens is Gram-negative b. Bacillus subtilis is a spore former c. the pigment of Serratia marcescens absorbs more radiation than other cells d. Bacillus subtilis has enzymes that protect it from ozonearrow_forward1. a) What is Gram staining? b) Describe step by step the procedure c) Explain the basis of Gram staining to differentiate bacteriaarrow_forwardMotility is best observed with a a. hanging drop preparation c. streak plate b. negative stain d. flagellar stainarrow_forward
- Following a gram stain, you observe clear, glassy areas inside the bacterial cells. What would you do next? A. Endospore stain B. Acid fast stain C. Simple stain D. Another gram stain E. Flagella stainarrow_forwardBacillus subtilis and Bacillus cereus most likely showed greater resistance to UV light than Serratia marcescens. This is due to: a. Bacillus spp. are Gram-positive, while Serratia marcescens is Gram-negative b. the Bacillus spp. are spore fonners c. the pigment of Serratia marcescens absorbs more radiation than other cells d. Bacillus spp. have enzymes that protect them from ozonearrow_forwarda. After conducting the Gram staining procedures and you observed that all cells are stained with too much purple though the bacteria you fixed is Gram negative, what could be the mistake you have done? b. After conducting the Gram staining procedures and you observed that all cells are stained with too much pink though the bacteria you fixed is Gram positive, what could be the mistake you have done?arrow_forward
- You make a smear of E. coli and then simple stain the slide with methylene blue. If you failed to use correct aseptic technique by not sterilizing the loop before picking up the bacterial sample for the smear, what results may be seen under the microscope? A Both blue and purple cells may be seen on the slide. B No cells may be visible on the slide. C There may be cells of different shapes, sizes, and arrangements.arrow_forwardWhy are endospore vials used to test autoclave function? A. they change color when killed B. they are very resistant life forms C. they are sensitive to pressure changesarrow_forwardBacteria tend to stain more readily with cationic (positively charged) dyes because bacterial surfaces a. contain large amounts of alkaline substances. b. contain large amounts of acidic substances. c. are neutral. d. have thick cell walls.arrow_forward
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