Homework Answers
Fecal coliform test is used to test the drinking water. This test will indicate the fecal contamination of water. It measures the concentration of total coliform bacteria associated with the possible presence of disease causing organism.
This test is not specific for Cholera but it is for all coliform bacteria that contaminates the water. Vibrio cholerae is the causative agent of cholera and this bacteria are eliminated with feces, so this test is suitable to know the cholera contamination in water.
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1. If you were worried about the presence of cholera in drinking water what laboratory test...
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1. Cholera is a disease that changes the tonicity (water/salt concentration) within the intestines and leads...
1. Cholera is a disease that changes the tonicity (water/salt concentration) within the intestines and leads to excessive diarrhea and dehydration and often death in those affected by it. Based on your knowledge of osmosis and water movement, explain what you think the cholera bacteria does to the cells and digestive cavity of people that are infected. Secondly, explain whether you believe that large amount of water or large amounts of an electrolyte drink such as gatorade would be the...
Exercise 10.3 Cholera This exercise looks at the symptoms of cholera and how the bacterium causes...
Exercise 10.3 Cholera This exercise looks at the symptoms of cholera and how the bacterium causes them. Cholera is often treated by oral rehydration therapy (ORT), and this exercise should also help you to gain an understanding of how this works and the ethics of testing new therapies. 1 The cholera bacterium, Vibrio cholero, releases a toxin that causes intestinal epithelial cells to actively pump out chloride ions into the lumen of the intestine. This causes water loss from the...
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APPLICATION! 1. A nonscientist brings a water sample to your laboratory and asks you to determine...
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You are required to test river water for the presence of bacteria and viruses and to...
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Victoria and Rusty were worried about their infant Bailey since his first trip to the hospital...
Victoria and Rusty were worried about their infant Bailey since his first trip to the hospital at 3weeks of age. That time he had a temperature of 103°F and a runny nose. The emergencyphysician checked Bailey over but sent him home saying it was only a common cold, probablybrought home by his older siblings, and that all would be fine. But Bailey's health has not beenfine as he has been having an unusual number of bacterial infections and he is...
What are you drinking? Environmental Protection Agency standards require that the amount of lead in drinking...
What are you drinking? Environmental Protection Agency standards require that the amount of lead in drinking water be less than 15 micrograms per liter. Ten samples of water from a particular source have the following concentrations, in units of micrograms per liter. Assume the population standard deviation is o = 4. If appropriate, perform a hypothesis test to determine whether you can conclude that the mean concentration of lead meets the EPA standards. Use the a-0.01 level of significance and...
What are you drinking? Environmental Protection Agency standards require that the amount of lead in drinking...
What are you drinking? Environmental Protection Agency standards require that the amount of lead in drinking water be less than 15 micrograms per liter. Ten samples of water from a particular source have the following concentrations, in units of micrograms per liter. Assume the population standard deviation is o = 4. If appropriate, perform a hypothesis test to determine whether you can conclude that the mean concentration of lead meets the EPA standards. Use the a-0.01 level of significance and...
1. Cholera is a disease that changes the tonicity (water/salt concentration) within the intestines and leads to excessive diarrhea and dehydration and often death in those affected by it. Based on your knowledge of osmosis and water movement, explain what you think the cholera bacteria does to the cells and digestive cavity of people that are infected. Secondly, explain whether you believe that large amount of water or large amounts of an electrolyte drink such as gatorade would be the...
Exercise 10.3 Cholera This exercise looks at the symptoms of cholera and how the bacterium causes them. Cholera is often treated by oral rehydration therapy (ORT), and this exercise should also help you to gain an understanding of how this works and the ethics of testing new therapies. 1 The cholera bacterium, Vibrio cholero, releases a toxin that causes intestinal epithelial cells to actively pump out chloride ions into the lumen of the intestine. This causes water loss from the...
What are you drinking? Environmental Protection Agency standards require that the amount of lead in drinking water be less than 15 micrograms per liter. Ten samples of water from a particular source have the following concentrations, in units of micrograms per liter. Assume the population standard deviation is o = 4. If appropriate, perform a hypothesis test to determine whether you can conclude that the mean concentration of lead meets the EPA standards. Use the a-0.01 level of significance and...
What are you drinking? Environmental Protection Agency standards require that the amount of lead in drinking water be less than 15 micrograms per liter. Ten samples of water from a particular source have the following concentrations, in units of micrograms per liter. Assume the population standard deviation is o = 4. If appropriate, perform a hypothesis test to determine whether you can conclude that the mean concentration of lead meets the EPA standards. Use the a-0.01 level of significance and...
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