The negative stain is used to?
a. determine Gram reaction
b.visualize fimbriae
c.determine cell size.
d.visualize endospores.
e.determine flagella arrangement.
The negative stain is used to? a. determine Gram reaction b.visualize fimbriae c.determine cell size. d.visualize...
In the Gram Stain, safranin is the dye used to stain gram negative bacteria. This solution is 0.5%(wt/vol) safranin. How many milligrams of safranin are in a 120 mL safranin solution? Report your answer to two decimal places. Perform all calculations in a single step using Excel to avoid accruing rounding error.
The Gram stain, commonly used to classify a bacterial isolate into one of two groups, is based upon the characteristics of which of the following structures? the ribosomes the cell wall the flagella the genetic material
QUESTION 15 Why is crystal violet used in the Gram stain retained in the cell wall of Gram positive bacteria, but not in Gram negative bacteria? Gram positive bacteria have a thick peptidoglycan layer while Gram negative bacteria have a thin peptidoglycan layer. Gram positive bacteria form spores and Gram negative do not. O Gram positive bacteria have no peptidoglycan layer and Gram negative bacteria have a thick cell wall O Gram positive bacteria have capsules and Gram negative bacteria...
need an explanation of how the gram stain is used and why it works. (this is not the gram stain procedure, but rather, how the dyes and steps work together to show Gram positive and Gram negative cell wall types)
List three technical reasons that a normal gram-negative cell might stain as if it were gram-positive. For each, explain the reason that this result would be observed.
Questions 1 Often, upon doing a negative pom doing a negative stain of unencapsulated Gram-negative cells, a small halo will be seen around the cells. Why is this the case? What external structure of Gram-negative cell will acude the negative stain? 2 What are the functions of a bacterial capsule? 3 Does a species produce a capsule under all conditions of cultivation? Explain. 4 Why is the size of a bacterium more accurate for a negative stain than a direct...
Cell Structure and Function: 1. What is the basic structure of the cytoplasmic membrane, and what are its three critical roles in bacteria? (5) 2. What is the role of peptidoglycan in the cell, what are the two polysaccharides which make up the backbone, and what is the advantage for a cell lacking peptidoglycan? (4) 3. What is the difference between Gram-negative and Gram-positive Bacteria in the crosslinking of peptidoglycan? (2) 4. How and why does the Gram stain differentially...
why isn't the gram stain used on acid fast bacteria ?if you did Gram stain acid fast bacteria ,what would their Gram reaction be?what is the gram reaction of non acid fast bacteria
What bacteria is this? What's the process of finding it? Negative Stain Gram Stain <
Gram-positive and gram-negative bacteria differ in that A. Gram-positive bacteria have more peptidoglycan in their cell walls. B. Gram-positive bacteria have fimbriae but gram-negative bacteria do not. C. Gram-positive bacteria are spiral-shaped, and gram-negative bacteria are either rod-shaped or spherical. D. Only gram-negative bacteria can form endospores. E. There is no difference between gram negative and gram positive bacteria F. Gram positive are positively charged and gram negative are negatively charges An unknown bacterial species was found in the blood...