Table 4. Transduction Plates Result Plate Number of colonies E. coli-only nagC phage only rpoA phage only nagC + E. coli repeat 1 nagC + E. coli repeat 24 nagC + E. coli repeat 2 rpoA + E. coli repeat 1¹ rpoA + E. coli repeat-2< rpoA + E. coli-repeat-34¹ Buffer only I ܢ7 0² 0 12 10 14< 0 0 04 0 2 4. E 2. 2 2 2 2
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- Formation of a(n) ___ allows some soil bacteria to survive adverse conditions. a. pilus b. nucleoid c. endospore d. plasmid8. Pigment or color (e.g.: opaque, translucid, red, yellow, rose, violet, etc..) is also another characteristic that can be used to identify your microorganism in a slant Thus, write down the name of three microorganisms (using scientific notation: Escherichia coli) that present a pigmented pattern of growth in a slant (write down the color of each pigment) and the name of the disease that they may cause. F10 F12 F6 %24 6. R. Home Enter K F G A Shift C Page Up Page Down Alt Ctrl Alt ΣIf a pele of hed-Son sitrive Medical equipment must be sferide to be usd a which of the folng method would be the best Method fo achere this?
- Im 100 4. You have a culture of yeast that is at a density of 8x10' cells/mL. You dilute the sample 1:10, then 1:1,000 again, and finally you dilute the sample an additional 1:5. You add 0.1 mL of the final dilution to a spread plate. Assuming that most of the cells in the original culture were living, how many colony- forming units do you expect to count on your pour plate the next day?8. Pigment or color (e.g.: opaque, translucid, red, yellow, rose, violet, etc..) is also another characteristic that can be used to identify your microorganism in a slant. Thus, write down the name of three microorganisms (using scientific notation: Escherichia coli) that present a pigmented pattern of growth in a slant (write down the color of each pigment) and the name of the disease that they may cause. 200%- 927 PM 0 日 2/7/2021 21 DELL Insert Delete F11 F12 PrtScr F9 F10 F7 F8 F6 F3 F4 F5 Esc F1 F2 Backspace & # 2$ 8 4 1 2 P Home R T E Enter K Shift V B Page Down Page Up Alt Ctrl Alt THome ノ/ *00 ΣK Miloura Paul - Biology_Unit 4 Pc X Seplquatic volve Sel Ciline fcal th CareX : m cceaianment A web.kamihq.com/web/viewer.html?state=%7B"kds%3A%5B 1 jGujPYSxQlex4AFCn8zftVSgM5PIG%5D%2C*action"%3A'open%2C'userld %3A"1129860039 E Miloura Paul - Darw. 100% A Kami Uploads Miloura Paul - Biology_Unit_4_Post_QuizEnzym Student Version pdf Cells in the stomach produce pepsin, an enzyme, to help digest food. Pepsin works best at a pH of 2. Which of these graphs most likely shows what will happen to the activity of pepsin as the pH of the stomach is increased? 2. EFFECT OF pH ON PEPSIN ACTIVITY A. EFFECT OF pH B. ON PEPSIN ACTIVITY pH pH EFFECT OF pH EFFECT OF pH ON PEPSIN ACTIVITY C. ON PEPSIN ACTIVITY pH pH DELL 23 2$ & 4 7 Pepsin Activity Pepsin Activity 5 Pepsin Activity Pepsin Activity CO
- 10. A single cell is placed into a culture tube containing nutrient agar. If the number of cells triples every 2 minutes and the culture tube is completely filled in 12 hours, how long does it take for the culture tube to be only half full of cells?3. A bacterial culture was diluted and results from duplicate plates were obtained as indicated below. What was the number of colony forming units/mL of the original culture? Dilution used for plating 10-2 10-3 104 10-5 10⁰ 10-7 10-8 4. 5. Amount plated 0.1 mL 0.1 mL 0.1 mL 0.1 mL 0.1 mL 0.1 mL 0.1 mL Colony counts after incubation (Results from duplicate plates) Too many to count Too many to count 341 413 99 175 27 : 29 7:2 0:0 Ten grams of hamburger were added to 90 mL of sterile buffer. This was mixed well in a blender. One-tenth of a mL of this slurry was added to 9.9 mL of sterile buffer. After thorough mixing, this suspension was further diluted by successive 1/100 and 1/10 dilutions. One-tenth of a mL of this final solution was plated onto Plate Count agar. After incubation 145 colonies were present. How many colony-forming units were present in the total 10 gram sample of hamburger? Devise a serial dilution scheme to prepare a 10-5 dilution on a plate using the least number of…6a. A sample is given to you that contains 6 million cells per ml. You must make a series of serial dilutions in order to get a countable number on a plate to prove that there are indeed 6 million cells per ml. The plate that you eventually put a sample of bacteria on must have between 10 and 100 colonies for ease of counting. What dilutions do you make to get this many colonies on a plate? How many colonies do you have on that plate? Show what dilutions you make (Write exactly how much liquid you move into each test tube and how much liquid was in the test tube, ex. Move 1 ml of culture into 9 ml of water – 10x dilution). Don’t forget to tell me how much liquid you eventually put on your plate. (If you want to draw something out, you could draw then take a picture of it with your phone and submit the image along with the worksheet). 6b. Do the same problem as in 6a, but now you have to do it in 3 test tubes or less. What dilutions do you do now? please use drawings to help…
- 1. Although sparse, there is still visible growth of microorganisms in Plate D which is the uninoculated plate. Where do you think the microorganisms came from?1. Why should we not use toothpicks in streaking bacterial colonies in an agar plate? what should be used instead of toothpicks? 2. Enumerate at least two normal flora each living in the skin and in the intestines I will upvoteeeTell me 3 things about each one? are they selective , differential , positive , negative results etc. motility tube depression slide slant tube