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Use the dilution scheme to answer. The concentration of bacteria in the original sample is CFU/ml. 0.1 ml 0.1 ml 0.5 ml 0.1 ml A 43 CFUS 9.9 ml 9.9 ml 9.5 mL original- sample )A. 8.60 x 102 OB. 8.60 x 107 OC. 430 x 107 D. 4.30 x 108 OE. 8.60 x 106

Use the dilution scheme to answer. The concentration of bacteria in the original sample is CFU/ml. 0.1 ml 0.1 ml 0.5 ml 0.1 ml A 43 CFUS 9.9 ml 9.9 ml 9.5 mL original- sample )A. 8.60 x 102 OB. 8.60 x 107 OC. 430 x 107 D. 4.30 x 108 OE. 8.60 x 106

Principles Of Pharmacology Med Assist
Principles Of Pharmacology Med Assist
6th Edition
ISBN:9781337512442
Author:RICE
Publisher:RICE
Chapter15: Antibiotic Agents
Section: Chapter Questions
Problem 20RQ
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**Question 3** Use the dilution scheme to answer. The concentration of bacteria in the original sample is _______ CFU/ml. **Diagram Explanation:** The diagram illustrates a dilution scheme involving several steps: 1. **Original Sample**: Begins with the original sample. 2. **First Dilution**: 0.1 ml of the original sample is added to 9.9 ml of diluent. 3. **Second Dilution**: 0.1 ml from the first dilution is added to another 9.9 ml of diluent. 4. **Third Dilution**: 0.5 ml from the second dilution is added to 9.5 ml. 5. **Final Step (A)**: 0.1 ml from the final dilution is plated, resulting in 43 CFUs. **Answer Choices:** - A. \(8.60 \times 10^2\) - B. \(8.60 \times 10^7\) - C. \(4.30 \times 10^7\) - D. \(4.30 \times 10^8\) - E. \(8.60 \times 10^6\) *Note: The task is to calculate the concentration of bacteria in the original sample using the data provided in the dilution scheme.*
Transcribed Image Text:**Question 3** Use the dilution scheme to answer. The concentration of bacteria in the original sample is _______ CFU/ml. **Diagram Explanation:** The diagram illustrates a dilution scheme involving several steps: 1. **Original Sample**: Begins with the original sample. 2. **First Dilution**: 0.1 ml of the original sample is added to 9.9 ml of diluent. 3. **Second Dilution**: 0.1 ml from the first dilution is added to another 9.9 ml of diluent. 4. **Third Dilution**: 0.5 ml from the second dilution is added to 9.5 ml. 5. **Final Step (A)**: 0.1 ml from the final dilution is plated, resulting in 43 CFUs. **Answer Choices:** - A. \(8.60 \times 10^2\) - B. \(8.60 \times 10^7\) - C. \(4.30 \times 10^7\) - D. \(4.30 \times 10^8\) - E. \(8.60 \times 10^6\) *Note: The task is to calculate the concentration of bacteria in the original sample using the data provided in the dilution scheme.*
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