Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 3, Problem 5CTQ
You are a scientist studying a marsh area contaminated with PCBs, toxic chemical compounds found commonly in industrial waste. Initial microscopic analysis of the soil reveals the presence of motile cells that measure in the micrometer range. You hypothesize that these microbes may be useful in bioremediation of the toxic waste. Thinking about microbial sampling and isolation, describe a method for culturing these microbes back in your laboratory.
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Chapter 3 Solutions
Microbiology: A Systems Approach
Ch. 3.1 - Explain what the Five Is mean and what each step...Ch. 3.1 - Discuss three physical states of media and when...Ch. 3.1 - Compare and contrast selective and differential...Ch. 3.1 - Provide brief definitions for defined and complex...Ch. 3.2 - Prob. 5AYPCh. 3.2 - Prob. 6AYPCh. 3.2 - Prob. 7AYPCh. 3.2 - Prob. 8AYPCh. 3.2 - Compare and contrast the three main categories of...Ch. 3 - Prob. 1MCQ
Ch. 3 - A mixed culture is a. the same as a contaminated...Ch. 3 - Resolution is ____ with a longer wavelength of...Ch. 3 - A real image is produced by the a. ocular. b....Ch. 3 - Prob. 5MCQCh. 3 - The specimen for an electron microscope is always...Ch. 3 - Prob. 7MCQCh. 3 - Bacteria tend to stain more readily with cationic...Ch. 3 - Multiple Matching. For each type of medium, select...Ch. 3 - A fastidious organism must be grown on what type...Ch. 3 - Agar has the disadvantage of being easily...Ch. 3 - A subculture is a culture made from an isolated...Ch. 3 - Prob. 13TFCh. 3 - Prob. 14TFCh. 3 - The best stain to use to visualize a microorganism...Ch. 3 - What is the functional type of mannitol salt agar...Ch. 3 - Create a short paragraph to differentiate among...Ch. 3 - Prob. 3CTQCh. 3 - a.Create a paragraph to differentiate among the...Ch. 3 - You are a scientist studying a marsh area...Ch. 3 - Visual Connections Blooms Level 5: Evaluate These...Ch. 3 - Prob. 1CM
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- Media, such as Mueller-Hinton agar, that neither restricts the growth of certain microbes nor distinguishes between the types microbes that do grow is: Incorrect Answer: B. Differential only Correct Answer: O C. General purpose Rationale:arrow_forwardAssuming you are working in a microbiology laboratory and a client sent you a sample for the following analyses A)Identification of all microorganisms in the soil sample B) Enumeration of culturable bacteria in the sample C) Enumeration of both culturable and non-culturable bacteria in the sample For a to c, explain the following: Method of analyses to be usedarrow_forwardIt is sometimes difficult to obtain pure cultures of microbes that grow naturally in mixed communities. True or False ?arrow_forward
- What is the difference between culture media and cultural environment? Are environmental conditions related to specific microbes? If so, which conditions for which type of microbes? If you were a field researcher collecting microbes in the wild, what kind of data would you take to make sure you know the exact environment the samples require in order to culture them in a lab?arrow_forwardWhat microbial control method would you use to clean a papercut? Why did you make that choice? Explain your reasoning . Need answer in short and very ASAP .arrow_forwardBecause so few organisms can be successfully cultivated in the laboratory, studying only those that have been isolated often does not give an accurate picture of what actually happens in nature. Discuss why is that so and give an alternative approach to study the microbial community.arrow_forward
- You are responsible for the bioremediation of soil contaminated by jet fuel. Your coworker suggests you fertilize the soil with nitrogen and phosphorus to promote the growth of naturally occurring hydrocarbon-degrading microbes. However, you just read about a new mixture of microbes sold in a slurry with nutrients and a surfactant. What data do you need to collect to decide which approach would be best? How will you obtain these data?arrow_forwardAfter quick-characterization by staining, specialized growth media can be used to indicate further biochemical characteristics of an unknown organism. These tests use visual outcomes, such as colors, patterns, and changes in appearance. The results can be interpreted to then assign a characteristic to the unknown organism. For example, a color change may happen when an unknown organism is incubated in a mixed sugar broth. The color could indicate which sugar was (or was not) used by the bacterium for energy. a) explain in your own words how to perform specialized media tests to find an unknown bacteriaarrow_forwardIn lab, sterile technique is important for what reason? none of the answers are correct to ensure that we have not introduced outside microbial variables to prevent our samples from being contaminated with human samples all of the answers are correct to prevent us from getting sick with microbesarrow_forward
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