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After insolating different species of bacteria, you see two distinct types of colonies. One has a medium-sized shimy colonies that are mucoid with entire margins, convex elevation and a whitish traslucent appearance. This colony type is the dominant type on the plate. The othe has circular, pinhead colonies which are convex with entire margins and have a yellowish-while color. There are only 2 olonies that appear this way.You make pure culture of each type of colony using half of one colony, labeled with its colony description, You take the other half of thew colony you used to make your pure culture, and perform a simple stain to determine the size and shape of the different bacteria.1)What kind of simple stain would you perform and why? What color will the cells appear when looking through the microscope and why?
2) Do you think the cells' shape has been affected by the stain? Why or why not?
3)You determine that the cells from the whitish translucent colony are rod shaped. What term do you use to describe this cell type? ____________4) You find that the cells from the smaller, yellowish-white colonies are circular and seem to appear in clumps. What cell type is this? ________________5) After you incubate your pure culture for 24 hours, you perform a gram stain. You find that your circular cells have stained purple. What does this result mean? Don't just answer gram+ or gram-. Give a brief explanation what this reaction is based on!
6) You find that your rod shaped cells have stained pink. What does this result mean? Don't just answer gram+ or gram-. Give a brief explanation what this reaction is based on!
as calcium and magnesium salts of fatty acids are insoluble in water, how would you expect this to affect the usefulness of soap in hard water.Why would these results happen the way they did.
Assume you have two cell lines named ViRa and SaSi growing in your lab. ViRa is susceptible to poliovirus infection, but is not permissive,
Choose one biotechnology example, such as agriculture, medical or historical, and provide at least two ways use of this biotechnology could benefit society and two ways this biotechnology could be harmful.
You are a technician in a hospital laboratory. Three members of one family, two kids (ages 4 & 8) and their mother, have presented at the local Emergency Room at 5:00PM with symptoms of double vision,
What is nonassociative learning and what are the differences between associative and nonassociative learning. In the small stream, you choose a rock and observe many small, flattened worms crawling on it are under surface. You decide that they belong..
A new reality TV show includes a "contest" to survive solitary confinement. To win, the contestant must remain for 12 hours in an air-tight room that is 5ft X 5ft X 8 ft.
1000 molecules are bouncing at 300K in two wells separated by a free energy gap DG = 6·10-21 J. Compute how many particles on average are in each well.
A deficiency of carnitine results in muscle cramps, which are increased through exercise or fasting. ATP is required for muscle contraction.
The signaling mechanisms used by a steroid-hormone receptor and by an ion channel linked receptor have very few components. Can either mechanism lead to an amplification of the initial signal? If so, how? Ideas are included.describe an amplificati..
Determine where are the hydrophobic or hydrophilic residues concentrated? Where does your mutation fall relative to these clusters and to the inside or outside of the protein?
explain the energetic of catalysis in simplest terms.
In the experiment, we will establish microcosms to test the effect of illumination on relative abundance of our two ciliate phenotypes. You will use three beakers filled with water.
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