Water treatment is crucial to health of a population. One type of infection that
ID: 164725 • Letter: W
Question
Water treatment is crucial to health of a population. One type of infection that can result from drinking contaminated water is cholera. Cholera is caused by the microbe V. cholera. Worldwide over 100,000-120,000 people die from it every year. The infection of the intestines is very serious once developed because this organism produces a toxin that causes diarrhea. The average doubling or generation time is 27 minutes.^113Indium labeled meals hove been used to determine the transit time the transit time through the digestive track The total time on average is 36 hours. If a person ingests 5 cholera colony forming units, then how many would be present by the time they exited the other end of the digestive tract (the anus)?Explanation / Answer
Average generation time = 27 minutes
No = 5 ( initial number of colonies )
Total time = 36 hours
Nt = No * 2n
But for this the number of generations have to be calculated
Number of generations = (60 min * number of hours ) / generation time in minutes
= (60 * 36 ) / 27
= 80
Therefore number of generations will be 80 .
Nt = No * 2n, here =
No=5 ; 280= 1208925819614629174706176
Nt = 5 * 1208925819614629174706176
Nt = 6.044629 e24 number of bacteria at the end of 36 hours, starting with 5 colonies initially.
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