Which of the following terms correctly describes the gram stain?
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acid |
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basic |
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negative |
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positive |
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differential |
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general |
In the Gram stain procedure, if the decolorizer step is not performed, the primary stain crystal violet will
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stain all bacterial cell walls. |
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stain only the thinner peptidogylcan cell walls. |
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stain only the thicker peptidogylcan cell walls. |
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stain the glass around the cell walls. |
Which of the following terms correctly describes the gram
stain?
The answer is differential
Becuase we commonly use this for differentiate gram postive and negative bacteria.
In the Gram stain procedure, if the decolorizer step is not
performed, the primary stain crystal violet will
The answer is : stain all bacterial cell walls. After decolorization the gram negative will loose violet stain.
Which of the following terms correctly describes the gram stain? acid basic negative positive differential general...
1) Given a coccus bacterium with a radius of 0.85 micrometers, what is its surface area to volume ratio, assuming it has perfect geometry? Report your answer as a decimal, for example a surface area of 1 μm2 with a volume of 3 μm3 would would yield SA / V = 0.67 μm-1. Do not include units when reporting your answer. The formula for the volume of a sphere in the lab manual is incorrect. Here are the formulas for...
Microbiology
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Bonus (+1 each) Select all of the responses that indicate the importance of the Gram stain. Gram stain results can help classify bacteria. Gram stain results can help classify yeast. Gram stain results can assist in diagnosing bacterial infections. Gram stain results can assist in choosing an appropriate drug treatment. Gram stain results are no longer useful in medicine. Bonus (+1) What role does crystal violet play in the Gram stain procedure? primary stain secondary stain...
- Which of the following pairs is mismatched? d. iodine mordant e. none of the above a. alcohol-decolorizer b. crystal violet-basic dye c. safranin-acid dye 2, Suppose you Gram stained a sample from one colony and observed a field of red and blue cocci. Adjacent cells were not always the same color. You could conclude that you have d. old cells e. made a mistake a. a mixed culture b. young cells c. dividing cells 3. Which of the following...
QUESTIONS Predict the effect on Gram-positive and Gram-negative cells of the following mistakes made when performing a Grum stain. Consider cac mistake independently a. Failure to add the iodine. b. Failure to apply the decoloriser. 3 c. Failure to apply the safranin. d. Reversal of crystal violet and safranin stains. Both crystal violet and safranin are basic stains and may be used to do simple stairs on Gram-positive and Gram-negative cells. This being the case, explain how they end up...
MICROBIOLOGY:
Exercise 3-7 Acid-Fast Stain (Kinyoun Method TRUE FALSE 1. The Acid-Fast stain is a differential stain. 2. The counter stain for the Kinyoun Acid-Fast method is 3. The decolorizing agent for the Kinyoun Acid-Fast method is . The Kinyoun method requires heat for at least 5 minutes . An Acid-Fast microbe is 6. The Acid-Fast method is used primarily to identify microbes in the genus TRUE FALSE in color 7. What is the other type of acid-fast staining procedure?...
NEED HELP WITH ALL PLEASE. MICROBIOLOGY
You have stained a bacteria using the Gram staining technique what color would any endospores be if present? A. Colorless B. Green C. Pink D. Blue E. Purple 2. If you omitted the Safranin step in a gram staining procedure, what would be the color of a Gram-negative bacteria? A. Colorless B. Pink C. Green D. Purple E. Blue 3. Bacillus licheniformis would be what color and shape after a Gram staining? A. Purple...
69. THE ENDOSPORE itself is might to stain_?_ color in an ACID FAST stain. (a) HOT pink (c) purple (d) green (e) baby-blue 70. All STAINS begin with a properly prepared _?_ . (a) dye (b) slide (c) smear (d) dog (e) cat 71. Which of the following is an ENDOTOXIN found in some microbes? This is results in fever, blood vessel dilation and possibly SHOCK when it is released into the human blood stream? (a) the plasma membrane (b)...
Part A Which of the following statements accurately describes bacterial cell walls? In bacteria with acid-tast cell walls, the carboxylic acid in the walls forms a layer outside a thin layer of hydrophilic polypeptides. The cell walls of gram-negative bacteria contain many more layers of peptidoglycan than those of gram-positive bacteria. In gram-negative bacteria, the thin layer of peptidoglycan is surrounded by an outer membrane made of phospholipids, lipopolysaccharides, and proteins Gram-negative bacterial cell walls contain teichoic acids, whereas the...
Microbiology
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Salmonella is associated with the handling of contaminated beef True False Escherichia coli is a red-pigmented organism. True O False The results of the MR-VP test can be directly read from the test without the addition of any other chemicals. True False Which medium contains a pH indicator to show pH change caused by fermentation? Glucose Broth Lactose Broth SIM Lactose and...
20.) The term spheroplast applies to a gram-negative bacterial
cell which .......?
A.) is likely to lyse due to the osmosis shock
b.) is just about to ready to produce a spore
c.) is fighting off an infection by becteriophages
d.) has lost its peptidoglycan layer of the cell wall
e.) is lacking a cell wall
17) Peptidoglycan is a polymer consisting of the following chemical constituents (1 pts) ON-acetyglucosamine (AGA), N-acetylmuramic acid, and a peptide chain ON-AGA, N-AMA, teichoic...