Tag: contaminated

Discuss efficient recycling and its potential to decrease the generation of waste within the U.S.For your assignment this week you are to write a paper of at least four pages that addresses the pollution created by transportation contaminated water and solid waste. Your paper should contain the following information

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Discuss efficient recycling and its potential to decrease the generation of waste within the U.S.For your assignment this week you are to write a paper of at least four pages that addresses the pollution created by transportation contaminated water and solid waste. Your paper should contain the following information.

Transportation
Begin with an analysis of the economics of this type of pollution, including a discussion of the externalities associated with mobile source pollution.
Next, discuss some of the current policies that regulate mobile source pollution.
Finally, discuss at least 3 possible reforms to the current system. Note which you believe have the greatest potential to decrease transportation pollutants and why you feel this way.
Water Pollution
Begin with a discussion surrounding the nature of the current water pollution problem, including a discussion of sources of contamination and types of pollutants.
Next, discuss some of the water pollution control policies active within the U.S. today.
Finally, discuss some of the efficiency and cost-effectiveness issues described in the book surrounding the treatment of polluted water.
Managing Waste
Begin with an evaluation of waste disposal costs and how economics plays a major role in the determination of these costs.
Next, discuss at least 2 ways in which economic incentives can help decrease the global waste problem (hint: read Exercise 19.4 and 19.5 in your text).
Finally, discuss efficient recycling and its potential to decrease the generation of waste within the U.S.
Your paper should include an introduction with a developed thesis statement to set up the paper, as well as a concluding paragraph that sums up your discussion. Additionally, your assignment must be at least four double-spaced pages in length (excluding the title and reference page) and be formatted according to APA (6th ed.) style as outlined in the approved APA style guide. You must use your text and at least three additional scholarly sources to provide sufficient detail of the topics listed above. For information regarding APA, including samples and tutorials, visit the Ashford Writing Center, located within the Learning Resources tab on the left navigation toolbar.

Discuss efficient recycling and its potential to decrease the generation of waste within the U.S.For your assignment this week you are to write a paper of at least four pages that addresses the pollution created by transportation contaminated water and solid waste. Your paper should contain the following information

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Discuss efficient recycling and its potential to decrease the generation of waste within the U.S. For your assignment this week you are to write a paper of at least four pages that addresses the pollution created by transportation contaminated water and solid waste. Your paper should contain the following information

Posted on | by KN Simon

Discuss efficient recycling and its potential to decrease the generation of waste within the U.S. For your assignment this week you are to write a paper of at least four pages that addresses the pollution created by transportation contaminated water and solid waste. Your paper should contain the following information.

Transportation
Begin with an analysis of the economics of this type of pollution, including a discussion of the externalities associated with mobile source pollution.
Next, discuss some of the current policies that regulate mobile source pollution.
Finally, discuss at least 3 possible reforms to the current system. Note which you believe have the greatest potential to decrease transportation pollutants and why you feel this way.
Water Pollution
Begin with a discussion surrounding the nature of the current water pollution problem, including a discussion of sources of contamination and types of pollutants.
Next, discuss some of the water pollution control policies active within the U.S. today.
Finally, discuss some of the efficiency and cost-effectiveness issues described in the book surrounding the treatment of polluted water.
Managing Waste
Begin with an evaluation of waste disposal costs and how economics plays a major role in the determination of these costs.
Next, discuss at least 2 ways in which economic incentives can help decrease the global waste problem (hint: read Exercise 19.4 and 19.5 in your text).
Finally, discuss efficient recycling and its potential to decrease the generation of waste within the U.S.
Your paper should include an introduction with a developed thesis statement to set up the paper, as well as a concluding paragraph that sums up your discussion. Additionally, your assignment must be at least four double-spaced pages in length (excluding the title and reference page) and be formatted according to APA (6th ed.) style as outlined in the approved APA style guide. You must use your text and at least three additional scholarly sources to provide sufficient detail of the topics listed above. For information regarding APA, including samples and tutorials, visit the Ashford Writing Center, located within the Learning Resources tab on the left navigation toolbar.

Discuss efficient recycling and its potential to decrease the generation of waste within the U.S. For your assignment this week you are to write a paper of at least four pages that addresses the pollution created by transportation contaminated water and solid waste. Your paper should contain the following information

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Discuss how you would purify a contaminated bacterial culture using the streak-plate procedure.

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Discuss how you would purify a contaminated bacterial culture using the streak-plate procedure..

MICROBIOLOGY (4106BMBMOL)    

Alternative practical assessment – To be completed by 1stof April 2020.

Please submit your coursework through the Turnitin box provided under ‘Assignments’ in Canvas. Submit your assignment as a word document. You can submit a draft of your assignment ONCE to Turnitin, and view the report. You can then make any changes in light of the Turnitin report of the draft.  When you have finalised the assignment, you should then submit it to the folder for the final submission. Note that you cannot view the Turnitin report for this.

Answer questions 1-3 in no more than a total of 1200 words (i.e. 400 words per question).  Use a separate page for each question. Where appropriate, please support your answers with references in a correct and consistent format (use the Harvard referencing system).

  1. Discuss how you would purify a contaminated bacterial culture using the streak-plate procedure.  Your answer should include labelled diagram.                                 (25 marks)
  • Describe the differences between the structure of a Gram-positive and Gram-negative bacterial cell wall.                                                                                               (25 marks)
  • Describe how environmental factors can affect bacterial growth.  Provide five examples to support your answer.                                                                                         (25 marks)
  • You are provided with data (Table 1) obtained during a study of the bacterial population of a broth culture.

An aliquot (1.0 ml) of broth culture was dispersed in 1000 ml of sterile distilled water and ten-fold dilutions of the resulting suspension were prepared (i.e. 10-4, 10-5, 10-6, 10-7 dilutions). Samples (100 µl) of each dilution were mixed with molten nutrient agar medium, poured into sterile petri dishes and allowed to set. The plates were incubated at 25oC for one week. After incubation, the number of bacterial colonies developing on the plates were counted. The following results were obtained:

 10-5 dilution10-6 dilution10-7 dilution
Mean number of bacterial colonies developing on plates at:56711011

Table 1.  Dilution plate count of the bacterial broth culture.

Express the above results in terms of the number of colony-forming-units per ml of broth culture.                                                                                            (25 marks)

Discuss how you would purify a contaminated bacterial culture using the streak-plate procedure.

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