Q: Why is it important to limit the quantity of cells used to prepare a smear?
A: A thin layer of cells or tissues that are taken from the body of an organism under study which is…
Q: Describe why Gram positive bacteria stain purple
A: Gram staining is a common technique used to differentiate two large groups of bacteria based on…
Q: Are the large numbers of microorganisms found in the mouth cause for concern? Explain.
A: We are authorized to answer one question at a time.Since you have not mentioned which one,I am…
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: How does the heaviness of a bacterial smear affect its microscopic analysis?
A: Microbiology is the study of microorganisms that are invisible to the naked eye. The microorganisms…
Q: Describe the bacterial colonies providing information on shape, color, size, elevation and edge…
A: Nutrient Agar is used for the cultivation of bacteria and for the enumeration of organisms in water,…
Q: What are Romanowsky stains? Name four of these.
A: Staining is a technique used to enhance contrast in samples , generally at the microscopic level.…
Q: Suppose you are to observe an unknown bacterial slide. In your initial observation, it appears to be…
A: Bacteria are almost everywhere, but even with a microscope, they aren’t always easy to see. It is…
Q: Presence of this specific bacterial surface polymer is usually demonstrated as a clear area when…
A: The polymeric surface covering in bacterial cells is called as capsule, this covering is made up of…
Q: Can a bacterium be positive for both MR and VP? explain
A: MR(Methyl Red) test is performed to detect glucose fermenting bacteria. The MR test acts as a pH…
Q: citrobacter freundii
A: Citrobacter freundii is a species of anaerobic gram-negative bacteria which belongs to the family…
Q: Both the Endospore Stain Protocol and Mannitol Salt Agar Media are differential. How can this be so?
A: The growth media are nutritious media that are used to grow microbes (bacteria and fungus) in the…
Q: Describe why Gram negative bacteria stain pink.
A: Gram staining is the differential staining technique performed to differentiate the bacterial…
Q: I Why does't a negative stain colorize the cells in the smear?
A: Staining is a technique which is used for enhancement of contrast in samples mostly at the level of…
Q: Describe the bacterial colonies providing information on shape, color, size, elevation and edge…
A: *morphology of Escherichia coli is identified as rough or a smooth form. *The trough forms colonies…
Q: Supposed you are to observe an unknown bacterial slide. In your initial observation, it appears to…
A: Microorganisms are defined as organisms that cannot be viewed by unaided eyes and require a…
Q: On what medium is the membrane filter incubated? Describe the appearance of coliforms on this…
A: Membrane filter technique is used for the enumeration as well as isolation of microbes in the water…
Q: What external bacterial cell structures can be demonstrated by a negative stain?
A: The negative stain is useful in studying the morphology of bacterial cells. It also characterize…
Q: Match the expected result (purple, red, or colorless) to the following descriptions of Gram-stained…
A: Gram-staining is a procedure of staining than can be used to differentiate between bacterial…
Q: Explain why the media where the Staphylococcus aureus is plated has turned yellow but the media…
A: Mannitol Salt Agar (MSA) is a differential and selective medium. A member of the staphylococcus…
Q: Can you please help me describe the colony apperance on these two stains? Thank you! Growth on Blood…
A: The chocolate agar and the blood agar media both have the almost same composition. The only…
Q: What is the accepted theory regarding the mechanism of the Gram stain?
A: Bacteria on the basis of the structural organization of their cell wall are of two types:…
Q: Match the expected result (purple, red, or colorless) to the following descriptions of Gram-stained…
A: Distinguishing characteristics such as shape,arrangement of cells, capsule formation or formation of…
Q: Explain the purpose of this stain. Give an example of a type of clinically relevant bacteria that…
A: It is true that endospores appear as clear spots within cells under a light microscope following…
Q: Describe the steps of the Gram stain, and explain how it can be animportant diagnostic tool for…
A: Gram staining is a method used to differentiate and classify the bacterial species into two category…
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: Explain the different results in the Gram stain are due to differences in the structure of the cell…
A: There are many types of bacteria and bacterial species. They are prokaryotic cell which has a cell…
Q: How would the slide appear if the bacteria were stained with safranin, a basic red dye?
A: The appearance of bacteria, when stained with safranin, is to be determined.
Q: What stain is used for mycobacterium?
A: The staining is very important process for observing an organism under microscope. The staining of…
Q: Why are smears of capsulated bacteria not heat-fixed before staining as opposed to Gram staining?
A: Gram staining is a differential staining technique developed by Danish bateriologist Hans Christian…
Q: is staphylococcus aureus cells under 40 times magnification bigger than onion cell or cheek cell?
A: Staphylococcus aureus is a Gram-positive, round-shaped bacterium that belongs to the Firmicutes and…
Q: Is UV treament more or less effective than disinfection when used against Saphylococcus aureus?
A: Saphylococcus aureus is a gram-positive bacterium that is found in the human nose, skin, and…
Q: From figure . What type of bacterial infection could bediagnosed using the stain shown in the…
A: Microbiology is the study of microorganism. The organisms that cannot be seen through naked eyes are…
Q: What color would the bacterial cells have when viewed microscopically after the following treatment?…
A:
Q: How does the bacterial cell structure contribute to the mechanism of Gram staining?
A: Bacteria are prokaryote organisms, that lack well-defined cell organeles and nuclei. Bacterial cell…
Q: microbial sensivity lab: in the procedure used to test bacterial growth against various temperatures…
A: Growth of bacteria differs with varying temperature. Bacteria grows rapidly in the temperature range…
Q: what is the function of each one of the Gram-stain reagents?
A: Gram staining is the technique used to classify the bacterial species into broad groups based on the…
Q: What is the major difference between an enrichment culture and a selective culture?
A: Culture media is used for cultivating microorganisms. Both selective media and enriched media are…
Q: It is expected that amoxicillin would be more effective against Gram-positive bacteria. Explain…
A: Amoxicillin is a beta-lactam antibiotic that functions by attaching itself to the membrane proteins…
Q: Decolorization in Gram-staining removes safranin from gram-negative cells True False
A: Bacteria are tiny, single-celled life forms that exist in their millions, in each climate, both…
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: Gram negative bacteria do not retain the stain when washed with alcohol.Comment.
A: Gram staining is a most important technique in the microbiology to differentiate the group of…
Q: Why can't gram staining be used for mycobacterium?
A: Gram staining is one of the staining techniques. This is usually used for differentiating between…
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: Explanation of results in context of unknown Test Purpose Reagents Used Gram-stain Endospore…
A: Pseudomonas aeruginosa It is an encapsulated, rod shaped bacteria which is responsible for the…
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: Based on the results of this Gram stain and the ID matrix below, which of the following microbes…
A: Gram' s staining helps in bacterial identification and their further classification. On the basis…
Q: what would be the medical significance of finding a positive endospore stain result from bacilli…
A: Endospores are thick walled structures found in the genus Bacillus and Clostridium.
Q: Explain why some cells are pink and others are the Gram- stained bacterial smear.
A: Gram staining is the differential staining technique performed to differentiate the bacterial…
Explain why some cells are pink and others are purple in
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- What is the purpose of the alcohol (OH) in the gram staining process? Explain.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.In Gram staining method, list the reagents and state their role for each step of the procedure? In preparing bacterial smear, why do we need to pass the slide over the flame?
- Are the structural differences between the cell walls of Gram-positive and Gram-negative bacteria responsible in any way for the Gram stain reaction?Why is heat-fixed procedure in bacterial smear preparation not ideal for capsular staining?What is the theory about the mechanism of the Gram-stain reaction? provide in paragpraph PLEASE PROVIDE REFERENCES IF POSSIBLE THANKS.
- Does the Gram stain provide information regarding a bacterium's susceptibility to antimicrobial drugs? explain your answer?Why are smears of capsulated bacteria not heat-fixed before staining as opposed to Gram staining?What color would Staphylococcus aureus cells be with the endospore stain shown in the photo?