E.coli, and K. rhizophila. How do you expect to be able to differentiate between the two organisms when analyzing what will they look like growing on the plate

Gram staining is a common technique used to differentiate two large groups of bacteria based on their different cell wall constituents. The Gram stain procedure distinguishes between Gram positive and Gram negative groups by coloring these cells red or violet. Gram positive bacteria stain violet due to the presence of a thick layer of peptidoglycan in their cell walls, which retains the crystal violet these cells are stained with. Alternatively, Gram negative bacteria stain red, which is attributed to a thinner peptidoglycan wall, which does not retain the crystal violet during the decoloring process - s. epidermidis a gram-positve coccus - E. coli a gram-negative bacillus  - C. xerosis a gram-positive bacillus  How does each organism fulfill a specific niche based on the information provided above?

In the experiments below, different prokaryotic cells were grown in broth cultures in the presence or absence of an antibiotic (either vancomycin or polymixin) After 1 hour, cells were rinsed, and the percent of bacteria that survived was determined. According to the data, which experiment (A or B) was done with vancomycin and which was done with polymyxin? Explain your reasoning in both cases. 100 0 A Bacillus E. coli with antibiotic without antibiotic B Methanoge n 100 Bacillus E. coli Methanogen

Hello, Can you please explain what is Schindler CleanCover and how it is used to kill the bacteria.

Can you say that the microbial composition changes over time in each of the body locations? Give two pieces of evidence. Why do you think the scientists also tested the soil around the cadaver? The study was done with mice and their cadavers decomposed on soil graves in the University of Colorado Transgenic Facility. Do you think the graphs would have looked different if the decomposition events would have happened outside during the hot summer months? Explain.

A large oil spill in the Pacific Ocean is threatening marine life. Scientists charged with cleaning up the spill believe bioremediation is the best option, but they are not sure what type of bacterial species to use in the bioremediation process. To help them in their decision, they have listed the nutritional modes of each species. Given your knowledge of the different nutritional modes of bacteria, which nutritional mode would be most beneficial in bioremediation of the oil spill? Chemophototroph Extremotroph Photoautotroph Chemoheterotroph

How does the shape of a bacteria cell affect the bacteria’s survival in the environment?  To answer this question: Calculate the surface-to-volume ratio of a coccus, assuming it is a perfect sphere. Where radius (r) = 0.91 μm. surface-to-volume ratio of a coccus = ________________   Calculate the surface-to-volume ratio of a bacillus, assuming it is a cylinder. Where r = 0.5 μm and height (h) = 4 μm surface-to-volume ratio of a bacillus = _________________________   The values provided for the radius of the coccus and the radius and height for the bacillus will give approximately the same volume for the coccus and the bacillus. However, the surface area will differ. Now compare the surface-to-volume ratio of a coccus to a bacillus calculated with these values. Which has the higher surface area for the same amount of volume? Considering the coccus and bacillus of equal volume from the question above,   Which is more likely to survive in a dry environment? Explain your answer.…

Hi, I am working on qPCR quantification for specific bacteria. However, when the CT value achieve greater than 30, it always shown high CT value differences in my duplication no matter I repeat the same set of experiment for those samples with low quality. My question is, what makes this happening? The other question is, how many CT value differences is acceptable for duplication?

You're studying the red pigment produced by the Gram-negative bacteria Serratia marcescens. You'll be searching for mutants of S. marcescens that do not produce red pigment by looking at single colonies individually to find white colonies; white mutants do not have a growth advantage. How would your search for mutants be characterized? None of the options here Replica plating Screen Selection

Epulopiscium fishelsoni is a Gram-positive bacteria found in the gut of a sturgeon fish. The largest ones found are up to 700μm in length. Your field of view when using the 100X objective has a diameter of 12mm. If you were to line up your Epulopiscium fishelsoni in a strepto- fashion, how many entire bacteria would fit in your field of view? Write just the number with any needed commas. Do not include units.