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Students in a microbiology lab are provided with a culture of E. coli, and don't know how long it's been growing. Keeping the culture at 37 deg C, the students use the culture to take samples every 5 minutes for turbidity measurements and to make dilutions (and spread plates for viable plate counts) over a total of 25 minutes. The graphs of the absorbance and log viable cell counts both show a horizontal line. Which of the following could be true about the culture's phase of growth during testing? It was in lag or stationary phase. It was in stationary or death phase. It is not possible to narrow down which phase or phases of growth the culture was in. It was in log/exponential or death phase.

Students in a microbiology lab are provided with a culture of E. coli, and don't know how long it's been growing. Keeping the culture at 37 deg C, the students use the culture to take samples every 5 minutes for turbidity measurements and to make dilutions (and spread plates for viable plate counts) over a total of 25 minutes. The graphs of the absorbance and log viable cell counts both show a horizontal line. Which of the following could be true about the culture's phase of growth during testing? It was in lag or stationary phase. It was in stationary or death phase. It is not possible to narrow down which phase or phases of growth the culture was in. It was in log/exponential or death phase.

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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Students in a microbiology lab are provided with a culture of E. coli, and don't know how long it's been growing. Keeping the culture at 37 deg C, the students use the culture to take samples every 5 minutes for turbidity measurements and to make dilutions (and spread plates for viable plate counts) over a total of 25 minutes. The graphs of the absorbance and log viable cell counts both show a horizontal line. Which of the following could be true about the culture's phase of growth during testing? It was in lag or stationary phase. It was in stationary or death phase. It is not possible to narrow down which phase or phases of growth the culture was in. It was in log/exponential or death phase.
Transcribed Image Text:Students in a microbiology lab are provided with a culture of E. coli, and don't know how long it's been growing. Keeping the culture at 37 deg C, the students use the culture to take samples every 5 minutes for turbidity measurements and to make dilutions (and spread plates for viable plate counts) over a total of 25 minutes. The graphs of the absorbance and log viable cell counts both show a horizontal line. Which of the following could be true about the culture's phase of growth during testing? It was in lag or stationary phase. It was in stationary or death phase. It is not possible to narrow down which phase or phases of growth the culture was in. It was in log/exponential or death phase.
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