5 61 88 10 13 12 15 14 Use the illustration below to answer the following three questions. 2 3 5 7 と PT 9 10 13 8 12 15 5a. Which of the structures may represent aquaporins? | 14
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- Please label this red onion cell image with a drop of water under the microscope. Include all relevant labels including: nucleus, cell wall, cell membrane, cytosol, vacuole, etc. Kindly explain why there's a large white stop at the top and bottom left. What conclusions do you draw from these results? Discuss this by referring to what type of solution this would be considered (eg. hypertonic, hypotonic or isotonic).A microorganism was streaked onto 4 nutrient agar plates and the plates were incubated at different temperatures for 24 hours. The results are shown in the picture below. Which of the following statements best describes the proteins in the organism? (the same organism was streaked on all four plates) 4°C 37°C 64°C 25°C O proteins in this organism function optimally only at 37 degrees Centigrade O proteins in this organism function optimally only at 4 degrees Centigrade O The proteins in this organism function over a broad range of temperature O proteins in this organism function over a narrow temperature range.ヨ LL F A B C D Match the letters to the appropriate terms to complete the sentences. Terms can be used more than once. 1. The ideal osmotic environment for an animal cell is a(n) environment. A 2. An animal cell placed in a(n) possibly burst. B solution will gain water, swell, and 3. There is a net diffusion of water out of an animal cell when it is placed in a(n) solution. 4. The ideal osmotic environment for a plant cell is a(n) D environment. 5. A plant cell placed in a(n) E solution will lose water and plasmolyze. 6. A plant cell surrounded by a(n) F solution will be flaccid (limp). ✓ [ Choose ] Hypertonic Hypotonic Isotonic [Choose ] [Choose ] [Choose ] [Choose ]
- Explain how twitching motility is performed in bacteria. Multiple (at least 4 different) proteins should be discussed in your answer.A certain medium has the following composition: Glucose 15 g Yeast extract 5 g Peptone 5 g KH2PO4 2 g Distilled water 1,000 ml Tell what chemical category this medium belongs to, and explain why this is true. How could you convert Staphylococcus medium (table above) into a non-synthetic medium? a. What kind of medium might you make to selectively grow a bacterium that lives in the ocean? One that lives in the human stomach? Why are intestinal bacteria able to grow on media containing bile?Scientists let rice blast fungal infection cells attach to and attempt to penetrate six different polymer sheets for different lengths of time and in varying extracellular osmotic pressures (Figure 22.9). As the number of the sheet increases so does its hardness. Which of the following makes the most sense based on the data? 100- 60 40- 20- 192 incubation time (hr) 72 96 240 100- 80- 60- 40- 20- b-Oo 8 10 12 extracellular osmotic pressure, MPa Figure 22.9 Penetration as a function of incubation time (A) and extracellular osmotic pressure (B). Numbers 1 to 6 in both panels indicate the substrate, with lower numbers being softer substrates. Percent penetration goes down over time and as substrate hardness increases. If penetration of a substrate occurs at a particular external pressure, this indicates that internal pressure is high enough to allow penetration of the particular substrate. Harder substrates are more easily penetrated when extracellular osmotic pressures are low. The…
- Depicted is a rod-shaped bacterium that can be approximated as a cylinder with two spherical caps, r = 0.5 micron. If the difference between the osmolarities inside and outside is 10 mosM, what would be the tension in the bacterial envelope? Is it uniform? (concentrations are expressed in mol/L)What phenomenon would you expect to see occurring under a microscope when healthy cells of E. coli bacteria are placed in a dish of distilled water? Briefly explain the underlying mechanism.please answer the table, tysm ♡
- Consider a batch culture of sphere-shaped bacteria in a growth medium or broth, in which the mean cell diameter of the bacteria is 2.0 μm (micron). Show all your calculations and assumptions in answering the questions below: What is the volume of one of these sphere-shaped cells, expressed in liters? If there are 3 x 10^12 cells in one liter of this culture broth, what percentage of the volume is occupied by bacteria and what percentage is occupied by the cell culture broth (water only)? If the cells contain 80% water, what is the dry cell concentration, expressed as “grams dry weight/Liter of broth”? You should assume that the density of the cells dry mass is approximately 1.0 gr/cm3Give detailed Solution (Don't give Handwritten answer)Using ultrafiltration, you concentrate a solution of Protein X as follows: Initial volume protein X = 300 mL Initial concentration protein X = 12 mg/mL Final volume protein X = 15 mL What's the final concentration of protein X in mg/mL?
