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1. You have a culture of yeast that is at a density of 8x10' cells/mL 2. A lab technician took a fecal sample and carried out the following dilutions: 1. Transferred 0.1 mL from the fecal sample 0.1 ml 1 ml 0.01 ml to 9.9 mL saline in tube A 2. Transferred 1 mL from A to 9 mL saline in tube B 0.1 ml 3. Transferred 0.01 mL from B to 9.99 mL A C saline in tube C 4. Transferred 0.1 mL from tube C to an agar plate 5. Counted 65 colonies on plate D 9.9 ml 9 ml 9.99 ml saline saline saline D 5. What is the concentration of cells in tube C? 6. What is the concentration of cells in the fecal sample?

1. You have a culture of yeast that is at a density of 8x10' cells/mL 2. A lab technician took a fecal sample and carried out the following dilutions: 1. Transferred 0.1 mL from the fecal sample 0.1 ml 1 ml 0.01 ml to 9.9 mL saline in tube A 2. Transferred 1 mL from A to 9 mL saline in tube B 0.1 ml 3. Transferred 0.01 mL from B to 9.99 mL A C saline in tube C 4. Transferred 0.1 mL from tube C to an agar plate 5. Counted 65 colonies on plate D 9.9 ml 9 ml 9.99 ml saline saline saline D 5. What is the concentration of cells in tube C? 6. What is the concentration of cells in the fecal sample?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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1. You have a culture of yeast that is at a density of 8x107 cells/mL 2. A lab technician took a fecal sample and carried out the following dilutions: 1. Transferred 0.1 mL from the fecal sample 0.1 ml I ml 0.01 ml to 9.9 mL saline in tube A 2. Transferred 1 mL from A to 9 mL saline in tube B 3. Transferred 0.01 mL from B to 9.99 mL 0.1 ml A C saline in tube C 4. Transferred 0.1 mL from tube C to an agar plate 5. Counted 65 colonies on plate D 9.9 ml 9 ml 9.99 ml saline saline saline D 5. What is the concentration of cells in tube C? 6. What is the concentration of cells in the fecal sample? 1
Transcribed Image Text:1. You have a culture of yeast that is at a density of 8x107 cells/mL 2. A lab technician took a fecal sample and carried out the following dilutions: 1. Transferred 0.1 mL from the fecal sample 0.1 ml I ml 0.01 ml to 9.9 mL saline in tube A 2. Transferred 1 mL from A to 9 mL saline in tube B 3. Transferred 0.01 mL from B to 9.99 mL 0.1 ml A C saline in tube C 4. Transferred 0.1 mL from tube C to an agar plate 5. Counted 65 colonies on plate D 9.9 ml 9 ml 9.99 ml saline saline saline D 5. What is the concentration of cells in tube C? 6. What is the concentration of cells in the fecal sample? 1
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