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4. What is the total dilution in C? 5. What is the concentration of cells in tube C? 6. What is the concentration of cells in the fecal sample?

4. What is the total dilution in C? 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 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 saline in tube C 4. Transferred 0.1 mL from tube C to an agar plate 5. Counted 65 colonies on plate D 0.1 ml 1 ml 0.01 ml 0.1 ml A C 9 ml saline 9.99 ml saline 9.9 ml D saline Questions: 1. What is the serial dilution in A? 2. What is the serial dilution in B? 3. What is the serial dilution in C? 4. What is the total dilution in C? 5. What is the concentration of cells in tube C? 6. What is the concentration of cells in the fecal sample?
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 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 saline in tube C 4. Transferred 0.1 mL from tube C to an agar plate 5. Counted 65 colonies on plate D 0.1 ml 1 ml 0.01 ml 0.1 ml A C 9 ml saline 9.99 ml saline 9.9 ml D saline Questions: 1. What is the serial dilution in A? 2. What is the serial dilution in B? 3. What is the serial dilution in C? 4. What is the total dilution in C? 5. What is the concentration of cells in tube C? 6. What is the concentration of cells in the fecal sample?
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