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Microbiology: Principles and Explorations
9th Edition
ISBN: 9781118743164
Author: Jacquelyn G. Black, Laura J. Black
Publisher: WILEY
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Textbook Question
Chapter 6, Problem 3.3SC
What is the purpose of a stock culture? Why is it never used itself for laboratory tests?
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Chapter 6 Solutions
Microbiology: Principles and Explorations
Ch. 6 - What are the differences between the lag phase and...Ch. 6 - How does logarithmic rate of increase differ from...Ch. 6 - Prob. 1.3SCCh. 6 - Why does a direct microscopic count of bacteria...Ch. 6 - What does the ending -phile mean? Distinguish...Ch. 6 - What enzymes do most obligate anaerobes lack? How...Ch. 6 - Prob. 2.3SCCh. 6 - Prob. 3.1SCCh. 6 - Distinguish between the various kinds of media:...Ch. 6 - What is the purpose of a stock culture? Why is it...
Ch. 6 - Prob. 1CCSCh. 6 - Exactly 100 bacteria with a generation time of 30...Ch. 6 - In the above example, do you think that the number...Ch. 6 - Prob. 3CTQCh. 6 - Prob. 1SQCh. 6 - Match the following growth phase terms to their...Ch. 6 - Which of the following is the best definition of...Ch. 6 - Prob. 4SQCh. 6 - The most probable number (MPN) technique is a...Ch. 6 - Match the terms with their definitions:Ch. 6 - Prob. 7SQCh. 6 - Why do foods containing a high concentration of...Ch. 6 - Some bacteria have complex nutritional...Ch. 6 - Prob. 10SQCh. 6 - Which type of cell will shift to aerobic...Ch. 6 - Which of the following statements about endospores...Ch. 6 - Prob. 13SQCh. 6 - Blood agar is often used to observe changes in the...Ch. 6 - A bacterial medium that contains 20 grams of beef...Ch. 6 - MacConkey agar contains the dye, crystal violet,...Ch. 6 - Prob. 17SQCh. 6 - What are the purposes of carrying out the streak...Ch. 6 - Prob. 19SQCh. 6 - During quorum sensing, bacteria sense their...Ch. 6 - Prob. 21SQCh. 6 - Identify the position of each of the following on...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- In the Harada-Mori culture technique, how are you going to dispose the culture tubes? Is it suitable to use refrigerated samples for this procedure Why or Why not?arrow_forwardWhat is the purpose of the pour plate technique? If a pure culture is used to inoculate the plate, why are some colonies bigger than others?arrow_forwardWhat is the purpose of flame-sterilizing the mouth of the test tube and the side of the Petri dish during inoculation?arrow_forward
- How is agar in the petri dish prepared to grow the bacterial specimen? explain in your own words.arrow_forwardWhat is the difference between culture-based technique and culture-independent techniques based on the principle behind the method?arrow_forwardIs it likely that a pure culture could be isolated from the human body? Why or why not?arrow_forward
- What is a mixed culture? A contaminated culture?arrow_forwardWhat is the purpose of performing a streak plate? What are some causes of lawn of cells?arrow_forwardTake a look at your streak plate from the use of a mix culture. Does your plate show the results that are expected? If yes, what does this result tell you if no, what error do you think could’ve caused this? Explain.arrow_forward
- why use dye reduction and standard plate count on checking the several types of bacterial levels in a milk factory and does not use pcr?arrow_forwardWhat is the purpose of staining bacteria? What is the purpose of collecting bacteria from different sources and staining them. What can you learn from this type of experiment?arrow_forwardWhat are the basic differences between the three plating methods? Fill up the following table. Streak Pour Spread Equipment/ Materials used in immobilizing and separating cells Purpose(s) (isolation, enumeration, both) Type of colonies (surface, subsurface, both) Advantage Disadvantagearrow_forward
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