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QUESTION 2 The cell density of a liquid sample is determined using the standard plate count method with the serial dilution scheme that is shown. What is the original cell density (OCD) of the liquid sample in CFU/mL? 0.1 mL 0.1 mL 1.0 ml 0.1 mL 1 2 102 9.9 mL 9.9 mL 9.0 mL CFUS O A. 1,02 x 107 O B. 102 OC. 1.02 x 108 OD. 1.02 x 106 O E. 1.02 x 103

QUESTION 2 The cell density of a liquid sample is determined using the standard plate count method with the serial dilution scheme that is shown. What is the original cell density (OCD) of the liquid sample in CFU/mL? 0.1 mL 0.1 mL 1.0 ml 0.1 mL 1 2 102 9.9 mL 9.9 mL 9.0 mL CFUS O A. 1,02 x 107 O B. 102 OC. 1.02 x 108 OD. 1.02 x 106 O E. 1.02 x 103

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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**Question 2** The cell density of a liquid sample is determined using the standard plate count method with the serial dilution scheme that is shown. What is the original cell density (OCD) of the liquid sample in CFU/mL? **Diagram Explanation:** 1. **Initial Flask:** Contains a liquid sample. 2. **Dilution 1:** 0.1 mL of the sample is transferred to Tube 1 containing 9.9 mL of diluent. 3. **Dilution 2:** 0.1 mL from Tube 1 is transferred to Tube 2 with 9.9 mL of diluent. 4. **Dilution 3:** 1.0 mL from Tube 2 is transferred to Tube 3 with 9.0 mL of diluent. 5. **Final Sample:** 0.1 mL is taken from Tube 3 and results in 102 CFUs (Colony Forming Units). **Options:** - A. \(1.02 \times 10^7\) - B. 102 - C. \(1.02 \times 10^8\) - D. \(1.02 \times 10^6\) - E. \(1.02 \times 10^3\)
Transcribed Image Text:**Question 2** The cell density of a liquid sample is determined using the standard plate count method with the serial dilution scheme that is shown. What is the original cell density (OCD) of the liquid sample in CFU/mL? **Diagram Explanation:** 1. **Initial Flask:** Contains a liquid sample. 2. **Dilution 1:** 0.1 mL of the sample is transferred to Tube 1 containing 9.9 mL of diluent. 3. **Dilution 2:** 0.1 mL from Tube 1 is transferred to Tube 2 with 9.9 mL of diluent. 4. **Dilution 3:** 1.0 mL from Tube 2 is transferred to Tube 3 with 9.0 mL of diluent. 5. **Final Sample:** 0.1 mL is taken from Tube 3 and results in 102 CFUs (Colony Forming Units). **Options:** - A. \(1.02 \times 10^7\) - B. 102 - C. \(1.02 \times 10^8\) - D. \(1.02 \times 10^6\) - E. \(1.02 \times 10^3\)
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