2. Unbeknownst to Surrena, the actual reason for her headache is not the noise generated by her 20 young cousins, but a bacterial infection caused by eating a piece of turkey that had been left out too long. At 4:00pm, the piece of turkey was host to a colony of 20,000 bacteria. By 7:00pm, the colony had grown to 300,000 bacteria. (a) Assuming that the bacteria continued to reproduce at the same relative (percent) rate, how many bacteria were on the piece of turkey when Surrena ate it at 8:45pm?(b) Ingesting just one bacterium usually will not cause an infection but ingesting enough bacteria usually will (if the bacteria can live and reproduce inside of the human body). Biologists often talk about the “infectious dose” (or ID50) of bacteria necessary to cause an infection in 50% of infected hosts. Assuming that the ID50 for this particular strain of bacteria is 100,000 bacteria, when is the latest that Dr. P could have eaten the turkey and had only a 50% chance of getting infected? 2. Unbeknownst to Surrena, the actual reason for her headache isnot the noise generated by her 20 young cousins, but abacterial infection caused by eating a piece of turkey that hadbeen left out too long. At 4:00pm, the piece of turkey washost to a colony of 20,000 bacteria. By 7:00pm, the colonyhad grown to 300,000 bacteria.(a) Assuming that the bacteria continued to reproduce at thesame relative (percent) rate, how many bacteria were on thepiece of turkey when Surrena ate it at 8:45pm?(b) Ingesting just one bacterium usually will not cause aninfection but ingesting enough bacteria usually will (if thebacteria can live and reproduce inside of the human body).Biologists often talk about the "infectious dose" (or ID50)of bacteria necessary to cause an infection in 50% ofinfected hosts. Assuming that the ID50 for this particularstrain of bacteria is 100,000 bacteria, when is the latest thatDr. P could have eaten the turkey and had only a 50%chance of getting infected?

2) The rapid growth of the bacteria colony is due to the ideal temperature and environment for…

Answered: 2. Unbeknownst to Surrena, the actual…

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter26: Prokaryotes: Bacteria And Archaea

Section: Chapter Questions

Problem 8TYK

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2. Unbeknownst to Surrena, the actual reason for her headache is not the noise generated by her 20 young cousins, but a bacterial infection caused by eating a piece of turkey that had been left out too long. At 4:00pm, the piece of turkey was host to a colony of 20,000 bacteria. By 7:00pm, the colony had grown to 300,000 bacteria. (a) Assuming that the bacteria continued to reproduce at the same relative (percent) rate, how many bacteria were on the piece of turkey when Surrena ate it at 8:45pm? (b) Ingesting just one bacterium usually will not cause an infection but ingesting enough bacteria usually will (if the bacteria can live and reproduce inside of the human body). Biologists often talk about the “infectious dose” (or ID50) of bacteria necessary to cause an infection in 50% of infected hosts. Assuming that the ID50 for this particular strain of bacteria is 100,000 bacteria, when is the latest that Dr. P could have eaten the turkey and had only a 50% chance of getting infected?

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