Why did you add Escherichia coli to sewage, which is full of becteria?
To write:
The reason E.coli is added to sewage, which is full of bacteria.
Introduction:
Raw sewage is mainly the water containing excrement, industrial release and debris. Excrement is the major source of harmful microorganisms including bacteria, viruses and parasites. These microorganisms contaminate the sewage water that leads to many water-borne diseases.
Explanation of Solution
Sewage is a rich source of bacteria that infects the enteric bacteria like E. coli. Phages present in the sewage will go through many cycles of the infection and lyses E. coli. E. coli acts as a sewage indicator and mainly found in sewage treatment plants and environmental waters.
The quantifications of E. coli serve in order to evaluate the performance of the microbial residue. Virulent bacteriophage multiplies rapidly after infecting the host cell and destroys the cell through lysis. The bacteriophage may lyse through the host cell or lysogenize the host. It shows the pathogenicity present in the water and the sewage sludge.
Thus, E. coli is added to the sewage, which is full of bacteria as it acts as sewage indicators and found in the environmental waters.
Want to see more full solutions like this?
Chapter 37 Solutions
Laboratory Experiments in Microbiology (11th Edition)
- Which of the following bacterial species is considered normal flora of the mouth? O 1) Streptococcus mutans 2) Escherichia coli 3) Klebsiella pneumoniae 4) Staphylococcus epidermidisarrow_forwardAntibiotics are derived from all the following except: a) Penicillium b) Bacillus c) Staphylococcus d) Streptomyces e) Cephalosporiumarrow_forwardName four different pathogenic groups of Escherichia coli.arrow_forward
- Which of the following is a characteristic of fecal coliforms? Question 10 options: A) Gram-positive B) endospore forming C) lactose-fermenting D) cocci-shapedarrow_forwardWhich of the following diseases is least likely to be transmitted by water?a) Hepatitis Ab) Cholerac) Shigellosisd) Trachomae) Typhoidarrow_forwardWhich of the following common causes of healthcareassociated infections is an environmental organism that grows readily in nutrient-poor solutions?a) Enterococcusb) Escherichia colic) Pseudomonas aeruginosad) Staphylococcus aureusarrow_forward
- Endotoxin is associated witha) Gram-positive bacteria.b) Gram-negative bacteria.c) the cytoplasmic membrane.d) endospores.arrow_forwardWhich of the following bacteria possesses a spherical shape?a) E. colib) Bacillus anthracisc) Spirilum minusd) Escherichia colie) Staphylococcus aureusarrow_forwardAdherence to the intestinal lining by a bacterium may be due to its possession of _____. A) endospores B) pili C) a flagellum D) F+ plasmidarrow_forward
- A range of antibiotics is produced by bacteria related to: (choose only one) a) Bacillus b) Mycoplasma c) Streptomyces d) spirochaetes e) cyanobacteriaarrow_forwardWhy does Helicobacter pylori cause ulceractions in the lining of the Stomach? 1)The microbes secrete a toxin that prevents the host from detecting invasion of the microbe and thus allows it to thrive in the stomach and damage the host cells. 2)After invasion of the microbe in the cells lining the stomach, they are no longer able to produce mucous to protect the host cells from acid erosion 3)The microbe produces an enzyme that causes the cell to produce potent digestive enzymes that erode the stomach lining. 4)Once the microbe has entered the stomach, it releases digestive enzymes that degrade the mucous secreting cells.arrow_forwardWhat bacterial genus is commonly found in the intestines of birds and reptiles? A) Neisseria B) Salmonella C) Rickettsia D) Bacillus E) Treponemaarrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education