Percentage Made III a 2: 0% 1x105 1gt;lt;10's 1gt;lt;1oT 1gt;lt;10K 1x109 Pathogenic Cells Per Serving Ateam of toxicologists produces thls...

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Percentage Made IIIa 2: fl 0%1x105 1><10‘s 1><1oT 1><10K 1x109 Pathogenic Cells Per Serving Ateam of toxicologists produces thls dose-response curve for a partlcular pathogen. Pathogen 0. ‘found in chicken eggs. 0n the x-axis. the toxicologists use a log scale to represent increasing numbers of pathogenic cells per serving of contaminated eggs. 0n the y-axis. the toxlcologists represent the percentage of people made ”I by exposureto different concentrations of pathogenic cells. (a) Using Pathogen C as an example, explain the difference between LD50 and EDSO. Then usethe dose-response curve to answer the following questions about Pathogen C. i. What Is Its ED50? ii. Approxlmately how many more pathogenic cells per serving are present in the EDSG dose than are present In a dose that affects 15 percent of the population?iii. Approximately how many times larger Is the EDS!) dose than the threshold level dose? to) Which pathogen is more potent: Pathogen C or a pathogen with an EDSO of 1,000 cells per sewing? if 500 people ate eggs contaminated by 1,000 calls per servlng ofthemore potent pathogen. approximately howI many of those people would become ill? Explain your answers. (c) Identlfy a speciflc food-bome pathogen. Describe one possible acute effect of exposure to this pathogen and one possible chronic effect of exposure to this pathogen. {d} Explain how Pathogen C mlght have a synerglstic relatlonship with another pathogen if ingested simultaneously. Explaln how Pathogen C mlght have an antagonisticrelationship with another pathogen if ingested slmultaneously.