Microbiology: An Introduction, Books a la Carte Plus Mastering Microbiology with Pearson eText -- Access Card Package (13th Edition)
13th Edition
ISBN: 9780134729336
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 4R
Seven methods of measuring microbial growth were explained in this chapter. Categorize each as either a direct or an indirect method.
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Chapter 6 Solutions
Microbiology: An Introduction, Books a la Carte Plus Mastering Microbiology with Pearson eText -- Access Card Package (13th Edition)
Ch. 6 - Prob. 1RCh. 6 - Prob. 2RCh. 6 - Prob. 3RCh. 6 - Seven methods of measuring microbial growth were...Ch. 6 - By deep-freezing, bacteria can be stored without...Ch. 6 - A pastry chef accidentally inoculated a cream pie...Ch. 6 - Nitrogen and phosphorus added to beaches following...Ch. 6 - Differentiate complex and chemically defined...Ch. 6 - DRAW IT Draw the following growth curves for E....Ch. 6 - NAME IT A prokaryotic cell hitched a ride to Earth...
Ch. 6 - Two culture media were inoculated with four...Ch. 6 - Two culture media were inoculated with four...Ch. 6 - Use the following graph to answer questions 3 and...Ch. 6 - Use the following graph to answer questions 3 and...Ch. 6 - Assume you inoculated 100 facultatively anaerobic...Ch. 6 - The term trace elements refers to a. the elements...Ch. 6 - Which one of the following temperatures would most...Ch. 6 - Which of the following is not a characteristic of...Ch. 6 - Which of the following types of media would not be...Ch. 6 - An organism that has peroxidase and superoxide...Ch. 6 - E. coli was incubated with aeration in a nutrient...Ch. 6 - Clostridium and Streptococcus are both...Ch. 6 - Most laboratory media contain a fermentable...Ch. 6 - Flask A contains yeast cells in glucose-minimal...Ch. 6 - Clinical Applications and Evaluation 1. Assume...Ch. 6 - Heat lamps are commonly used to maintain foods at...Ch. 6 - The number of bacteria in saliva samples was...
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- For each of the following situations, describe how bacteria on these growth. media would appear on the plate: A. On MacConkey agar, a bacterium that grows on the medium but is negative for lactose fermentation B. On EMB agar, a bacterium that grows on the medium but is positive for lactose fermentation C. On mannitol salt agar, a bacterium that failed to grow on the medium D. On mannitol salt agar, a bacterium that grew on the medium and fermented mannitolarrow_forwardOutline the different physical and chemical methods of sterilization. Briefly describe how each method control microbial growtharrow_forwardWhat are the advantages and disadvantages of plate count technique over other methods of quantifying microbial populations?arrow_forward
- Why do we study how to control microbial growth? Give concrete examples wherein our understanding of microbial growth is applied.arrow_forwardList 5 physical methods of controlling microbial growth, and give an example of each. Why is moist heat much more effective than dry air?arrow_forwardExplain the significance of aseptic culture technique in growing microorganisms.arrow_forward
- Assuming 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_forwardMedia, 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_forwardhttps://courses.lumenlearning.com/microbiology/chapter/controlling-microbial-growth/ Read this Article about Controlling Microbial Growth and answer the following questions: What are some characteristics of microbes and infectious agents that would require handling in a BSL-3 laboratory? What is the purpose of degerming? Does it completely eliminate microbes? What are some factors that alter the effectiveness of a disinfectant?arrow_forward
- Discuss fresh, living preparations vs fixed preparations. What are the advantages and disadvantages of each technique in a microbiology laboratory?arrow_forwardA microbiologist inoculates a growth medium with 100 bacterial cells/ml. If the generation time of the species is 1 hour, and the microbes are in the exponential (log) phase of growth, how many hours require for the culture to surpass 10,000 cells/ml, if the culture is checked once each hour? O 1) 2 hours O 2) 7 hours O 3) 3 hours O 4) 10 hours O 5) 24 hoursarrow_forwardDescribe the five phases of a microbial growth curve observed when growing microbes are grown in broth culture and discuss the causes of eacharrow_forward
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