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Chapter 1, Problem 30AP

(a)

To determine

To determine: The total intestinal volume and the order of magnitude of the number of micro organism in the human intestinal tract.

(b)

To determine

To determine: The number of bacteria suggest whether the bacteria are beneficial, dangerous, or neutral for the human body and the function they could serve.

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(a) What is the order of magnitude of the number of micro organisms in the human intestinal tract? A typical bacterial length scale is 10-6 m. Estimate the intestinal volume and assume 1% of it is occupied by bacteria. (b) Does the number of bacteria suggest whether the bacteria are beneficial, dangerous, or neutral for the human body? What functions could they serve?
A population of E. coli bacteria grows exponentially with time. You believe that the mean time between divisions is t, = 26 min, and that cell death occurs on average after tm = 200 hr. The population starts with 1000 cells. Complete parts (a) through (c). (a) Use the equation N(t) = N, e0-m)t to predict how many cells are present after 3 hours. The number of cells present after 3 hours is. (Do not round until the final answer. Then round to the nearest integer as needed.)
(a) what is the average rate of change of the number of bacteria in the culture between 1 and 3 hours after the measurements begin? (b) because the average rate of science is _ the bacterial population is decreasing at an average rate of _ bacteria per hour between one and three hours after management begins?

Chapter 1 Solutions

Bundle: Physics For Scientists And Engineers With Modern Physics, Loose-leaf Version, 10th + Webassign Printed Access Card For Serway/jewett's Physics For Scientists And Engineers, 10th, Single-term

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