What is [are] good reason[s] for plating a mixture of bacteria so as to form colonies? Select all that apply. Group of answer choices Count the number of dead and live bacteria in the mixture Count the number of bacteria in the mixture that can grow on the plate Get lots of copies of all the cells in the mixture

What is [are] good reason[s] for plating a mixture of bacteria so as to form colonies? Select all that apply. Group of answer choices Count the number of dead and live bacteria in the mixture Count the number of bacteria in the mixture that can grow on the plate Get lots of copies of all the cells in the mixture

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter13: Diversity Of Microbes, Fungi, And Protists

Section: Chapter Questions

Problem 1ACQ: Figure 13.6 Which of the following statements is true? a. Gram-positive bacteria have a single cell...

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Similar questions

A 2x10-6 dilution of your bacterial culture yielded 10 colonies. What was the cell density (incells/ml) of your bacterial culture?
You perform a quadrant streak and isolate a single colony which contains two distinct species of bacteria. You repeat this with the same results. Provide a possible explanation for this result that does not involve contamination of the sample.
you diluted a bacterial culture a million-fold. you then plated out 0.1 mL of dilution and after incubation, 45 colonies appeared on the plate. How many bacteria/mL were in the original undiluted culture?
Polymyxins are antibiotics that are used in the treatment of Gram-negative bacterial infections. You are given samples of two different types of bacteria. You are told that Bacteria A is Gram-negative bacteria and Bacteria B is Gram-positive bacteria. Describe, in your own words, how you would confirm the bacterial types.
Suppose you count 35 bacterial cells from a solution that has gone through the following serial dilutions: two 10-fold dilutions, followed by a 5-fold dilution, followed by 2-fold dilution. What should be the bacterial count from the original solution? Show your work
Determine the number of bacterial cells per milliliter in the original culture. Can you please explain how you get to the answer
When observing a streak plate of isolated bacteria as shown below, you see colonies outside the area you streaked. What would you concluded about these colonies?
To describe bacterial colonies based on their color (a), form (b), texture (c), margin (d), and elevation (e).
You use a spectrophometer and estimate the concentration of bacteria in a urine sample to be 4.6 x 10^5 cells/ml. Assuming you will plate 0.1ml of your samples, to what factor should you dilute your sample to get a countable number of colonies? Rearrange Original Cell Density formula to solve.
) If you counted 500 CFU’s in the petri dish for number 6 and 5000 CFU’s in petri dish for number 7, what would be the most justifiable explanation for this? 19) If the original sample’s concentration was 12 bacterial cells, what do you expect the count to be?
How would you produce a 10^-1 dilution if a 3 mL bacterial sample using the entire 3 mL volume? suppose your professor handed you a test tube with 2.0 mL of an E. coli broth culture in it and told you to make a 10^-1 dilution of the entire culture. Explain how you would do this. Show your calculations.
If you were to analyze three separate colonies from the plate above, would you expect them all to be the same species of bacteria? Why or why not?