Q: Describe in detail all the steps needed to determine whether an Unknown bacteria has a Gram-positive…
A: Introduction: Gram staining is a method developed by Danish bacteriologist Hans Christian Gram in…
Q: Which of the following statement is true? A. Gram negative bacteria have thicker…
A: Option (A) - This is a incorrect statement. Gram negative bacteria have a thinner peptidoglycan…
Q: What are some reasons a Gram positive cell might appear Gram negative? What color would a Gram…
A: Gram-positive bacteria have a thick peptidoglycan layer and no outer lipid membrane whilst…
Q: If the iodine step in a Gram-staining procedure was omitted, what color would you expect…
A: Gram staining is a technique which is used to identify the bacterial cell type, whether it is gram…
Q: The light photomicrograph (see image below) shows a single type of bacterial cell treated with…
A: Magnification = length of image ÷ actual length of organism
Q: Give two reasons for the differential staining between gram + and gram - organisms
A: Differential Staining is all those staining methods that employ more than one stain to distinguish…
Q: Which bacteria are inhibited from growing on eosin methylene blue (EMB) and agar? a)halophilic…
A: EOSIN METHYLENE BLUE - eosin methylene blue is a selective strain for gram - negative bacteria . It…
Q: Please discuss how Gram-Positive and Gram-Negative Cell walls are different from each other. What…
A: Bacterial cells are prokaryotic cells. These are classified as Gram positive and Gram negative on…
Q: e draw (by hand, no digital or copy / paste) AND label a cross section of the cellular envelope of…
A: Teichoic acid and teichuronic acid are abundant in the cell walls of gram-positive bacteria. They…
Q: Are the structural differences between the cell walls of Gram-positive and Gram-negative bacteria…
A: The gram-positive and negative cells differ in their cell wall composition.
Q: Which of the following is present in certain Gram positive bacteria and functions in resistance? O…
A: Ans- b) Spores The most resistant part that is present in gram-positive bacteria is spores as it is…
Q: 1. Diagram (draw) the Gram positive cell wall. Be sure to label specific components of the…
A: The majority of the gram positive cell wall contain significant measure of teichoic acid and…
Q: What other properties besides staining are different in grampositive and gram-negative bacteria?
A: Answer- The bacterias can be considered into two different types- Gram positive bacteria Gram…
Q: In the Gram stain, gram-positive bacteria are dark purple for all the following reasons EXCEPT:…
A: Organisms can be provisionally identified by growing them on medium and looking at their shape and…
Q: What is the color of endospores after Gram staining? After spore staining?
A: There are various staining techniques that are used to stain different cellular structures. The Gram…
Q: How do gram-positive and gram-negative bacteria differ in cellular structure, and how does this…
A: Gram staining is a most important technique in the microbiology to differentiate the group of…
Q: What Are The Conditions When Gram Positive Bacteria Can Appear Gram Negative?
A: Gram positive bacteria have thick cell wall and they give positive result in gram stain test , in…
Q: You perform a Gram stain. Your Gram positive control, your Gram negative control, and your sample…
A: Gram-staining is a technique used to classify bacterial species, either as gram-positive or…
Q: Describe why Gram negative bacteria stain pink.
A: Gram staining is the differential staining technique performed to differentiate the bacterial…
Q: What is the structure of Gram Positive?
A: Introduction: Gram strain test is an important test used to classify bacteria according to the type…
Q: The main difference between a gram-positive and a gram-negative bacteria, is that; a. Gram-positive…
A: The gram staining technique is used to distinguish bacteria into gram positive and gram negative…
Q: Explain the Gram Positive Structure
A: Gram-positive bacteria exist in the genus of the bacteria family and a member of the…
Q: Why do cheek cells stain red with the gram stain? What is the big red circle in the middle of the…
A: Bacteria that have a thick layer of a substance called "peptidoglycan" in their cell wall will get a…
Q: List 2 reasons why a bacterium that should be gram positive might turn out gram negative.
A: Gram-positive and Gram-negative bacteria are differentiated by Gram staining.
Q: Explain the difference between Gram positive and Gram negative cell walls. Describe the procedure…
A: The bacteria are classified into Gram positive or Gram negative according to their nature of the…
Q: a. What can you observe in viewing your stained bacterial slide under the microscope if you fixed a…
A: The staining is a very important process in microbiology that is used to identify specific…
Q: Explain observation of gram-negative and gram positive cell wall under electro microscope.
A: Gram staining is a technique used to differentiate between two groups of bacteria namely…
Q: When performing a Gram stain on a Gram-negative bacteria, why does the bacteria stain pink? Crystal…
A: Gram staining is a method in which cells stain either pink (gram-negative) or purple (gram-positive)…
Q: why the Gram stain can differentiate between Gram positive and Gramnegative cells?
A: *Gram staining is a technique used to differentiate two groups of bacteria into gram positive and…
Q: You accidentally switch the Crystal violet and Safranin steps during your Gram stain. When you look…
A: The gram staining procedure that is used for staining and visualizing the bacteria. The bacteria are…
Q: about the Gram stain is false? A-In the Gram stain, a dye called crystal violet is used to stain…
A: Gram staining is a differential staining method used for differentiating bacterial species into two…
Q: What shape is the gram negative and gram positive?
A: The branch of science in which we study about bacteria is called bacteriology. During experiment to…
Q: What color would the bacterial cells have when viewed microscopically after the following treatment?…
A:
Q: What color would the bacterial cells have when viewed theoretically under the microscope after the…
A: Gram staining is a age old method to classify bacteria according to the composition of their cell…
Q: Explain how you would troubleshoot a Gram stain of a known G(-) organism that stained purple.
A: Gram staining is used to differentiate bacteria based on their cell wall constituents. Gram-positive…
Q: Describe the cross - section side view of a Gram - negative cell . Clearly state where the following…
A: The gram-positive bacteria retain the crystal violet color and stain purple whereas the…
Q: Suppose you are viewing a Gram-stained field of red rods and purple cocci through the microscope.…
A: On the basis of the gram staining technique, the bacteria are classified into Gram-positive and…
Q: What is gram staining Step by step procedure Explain its basis and how it differentiate bacteria use…
A: Gram staining is a common technique used to differentiate two large groups of bacteria based on…
Q: What color would the bacterial cells have when viewed microscopically after the following…
A: Gram staining is a technique proposed by Christian Gram to distinguish Gram positive and negative…
Q: What color would the bacterial cells have when viewed microscopically after the following treatment?…
A: Gram staining is a technique to distinguish between two broad types of bacterias on the basis of…
Q: One major difference in the envelope structure between gram positive bacteria and gram-negative…
A: Bacteria are unicellular prokaryotes that are found in different habitats that might be pathogenic…
Q: What is gram negative and gram positive?
A: Gram staining is the type of staining to determine if the microorganism of interest is gram negative…
Q: what is the theory about the mechanism of the gram-stain reaction
A: Introduction :- A Gram stain test looks for bacteria in areas where an infection is thought to have…
Q: Should cheesemakers be worried about endospore growth of Gram-positive cells? Why or why not?
A: Bacteria are organisms that are found almost everywhere on earth and are free-living cells that are…
Q: If you saw large, eukaryotic cells in the preparation made of your gumline, they were most likely…
A: Eukaryotic cells do not have a peptidoglycan layer to retain the crystal violet stain so its not…
Q: what are the structures of gram negative cells? what are the structures of gram positive cells?
A: Bacteria are single-celled prokaryotes ubiquitous in nature. As such, they can be found in different…
Q: Does UV light affect gram-negative and gram-positive bacteria the same or differently? and why?
A: Ultraviolet (UV) irradiation is type of non ionizing radiation which is widely used as a sterilizing…
Q: How does the cell wall of Mycobacterium influenceits reaction to the Gram stain and the acid-fast…
A: MYCOBACTERIUM- Mycoplasmas are a group of bacteria that do not have devoid of cell walls as they…
Q: What types of acid include in the gram-positive cell wall?
A: Gram-positive bacteria are bacteria that provide a positive result in the Gram stain test, which has…
What are some reasons a Gram positive cell might appear Gram negative?
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- What Are The Conditions When Gram Positive Bacteria Can Appear Gram Negative?What conditions can cause gram-positive bacteria to appear as gram-negative?What are some reasons a Gram positive cell might appear Gram negative? What color would a Gram negative cell be if you forgot to wash with ethanol and why? What color would a Gram negative cell be if you forgot to stain it with safranin and why?
- What can happen to cause gram-positive bacteria to appear gram-negative?what are the structures of gram negative cells? what are the structures of gram positive cells?Why do low concentrations of alcohol inhibit Gram-negative bacteria more than Gram-positive bacteria? Explain how the alcohol interacts with: 1) Gram-negative cell wall structures 2) Gram-positive cell wall structures
- What is the definition of Gram Positive?What are the structural differences between Gram-positive and Gram-negative bacteria cell walls? Can you explain what would happen to the cell wall's physical integrity while applying the Gram staining technique?Are the structural differences between the cell walls of Gram-positive and Gram-negative bacteria responsible in any way for the Gram stain reaction?