Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 6, Problem 5MCQ
Assume you inoculated 100 facultatively anaerobic cells onto nutrient agar and incubated the plate aerobically. You then inoculated 100 cells of the same species onto nutrient agar and incubated the second plate anaerobically. After incubation for 24 hours, you should have
- a. more colonies on the aerobic plate.
- b. more colonies on the anaerobic plate.
- c. the same number of colonies on both plates.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
You inoculate 100 facultative anaerobic cells onto two media plates. You incubate one aerobically and one anaerobically. Which plate will have the greatest growth after 24 hours? Explain your answer. Look up facultative and anaerobic
You inoculate two test tubes with the same amount of identical growth medium and with the same number of
identical yeast cells and grow these cells under identical conditions except for the presence or absence of
oxygen.
a) After 12 hours, all of the glucose in each culture has been consumed. You determine the number of total cells
found in each culture and find that one culture has more cells than the other.
Which culture would have the greater cell density, the one grown aerobically or the one grown
anaerobically?
Explain why the culture you chose above can make more cells with the same amount of glucose than the
other culture.
You have 2 organisms, A and B. One is an obligate aerobe and the other is an obligate anaerobe. You have 2 Nutrient Agar Plate Media that these organisms can grow on. How can you differentiate which organism is aerobic and which is anaerobic?
Chapter 6 Solutions
Microbiology: An Introduction
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...
Additional Science Textbook Solutions
Find more solutions based on key concepts
True or false? Some trails are considered vestigial because they existed long ago.
Biological Science (6th Edition)
Why do scientists think that all forms of life on earth have a common origin?
Genetics: From Genes to Genomes
Identify me theme or themes exemplified by (a) the sharp quills of a porcupine (b) the development of a multice...
Campbell Biology in Focus (2nd Edition)
Gregor Mendel never saw a gene, yet he concluded that some inherited factors were responsible for the patterns ...
Campbell Essential Biology (7th Edition)
Label each statement about the polynucleotide ATGGCG as true or false. The polynucleotide has six nucleotides. ...
General, Organic, and Biological Chemistry - 4th edition
Knowledge Booster
Learn more about
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
- You inoculated two test tubes with the same amount of identical growth medium and with the presence or absence of oxygen. After 12 hours, all of the glucose in each culture has been consumed. You determined the number of total cells found in each culture and find that one culture has more cells than the other. (i) Which culture would have the greater cell density, the one grown aerobically or the one grown anaerobically? (ii) Explain why the culture you chose above can make more cells with the same amount of glucose than the other culture. (iii) The cells of both cultures convert glucose to pyruvate via glycolysis, and then further metabolize pyruvate. Are the cells of both cultures able to obtain the same amount of ATP from glycolysis? Explain.arrow_forwardThe graph shows the number of microbial cells (log scale) against time in a liquid culture. In which stage(s) are the cells growing and dividing? A, B, and C B and C A Barrow_forwardA glass flask is rinsed and autoclaved after use. It was then filled with sterile media in a sterile environment and covered. A few days, microbial growth appears in the flask. Assume the media and sterile environment is guaranteed to be sterile. What most likely caused the growth in the flask? a. The flask has to be rinsed with bleach before autoclaving b. A portion of the flask was not exposed to the steam c. Autoclaves only sanitize equipment, so you cannot expect the flask to be sterile d. Autoclaving inhibits growth, but does not kill microbesarrow_forward
- The diagram shows the growth curve of Escherichia coli in a suspension culture containing glucose and lactose. Optical density is used to measure the concentration of bacteria in the suspension culture. Use the image to answer the question. Which statement BEST supports the information in the graph? A. E. coli metabolizes lactose and glucose. B. E. coli metabolizes glucose first, then lactose. C. E. coli metabolizes lactose first, then glucose. D. E. coli metabolizes lactose and glucose at the same time.arrow_forwardThe term psychrophile? a. refers to an organism that has an optimum growth within the range of -5 to 20oC b. refers to an organism that has an optimum growth at near neutral pHc. refers to an organism that has an optimum growth between 50 and 80oCarrow_forwardDescribe the similarities and the differences in the growth patterns in the two plates.arrow_forward
- All of the following are valid measurements of growth except: A. Counting viable cells B. Estimating the weight of cells C. Determining the dry weight of cells D. Streaking for single colonies E. Measuring some cellular component F. Counting the total number of cellsarrow_forwardSuppose that you were tasked with 4 cultures of a specific Bacteria Species in Luria Broth medium: (1) culture A – cells are in lag phase; (2) culture B – cell in log phase; (3) culture C – cells in stationary phase; and culture D – cells in decline phase. Imagine that you observe the growth rates of each culture in a fresh sterilized LB medium. Now, plot the outcome growth curves of cultures A, B, C and D in a single graph.arrow_forwardI need your help with the question attached.arrow_forward
- Your lab coordinator has decided to grow and maintain a sourdough starter. A sourdough starter is a live, on-going culture of yeast that is grown in flour, water, and a bit of sugar. It is used as an ingredient in some types of bread. Initially when the ingredients were mixed together the mixture appeared dead. After a while, it began to bubble and foam and then it tripled in volume. Eventually it stopped bubbling. Every week it is maintained by "feeding” it fresh flour every week. Over time, it will start to develop a 'sour' taste when it is used to make bread. This is the question A sourdough starter is "fed" flour and water every week to keep it alive.Each week, some of the starter can be removed and used for baking bread.It is added to bread dough to add flavour. The older the starter, the stronger the flavour. What causes the 'sour' taste?arrow_forwardYour lab coordinator has decided to grow and maintain a sourdough starter. A sourdough starter is a live, on-going culture of yeast that is grown in flour, water, and a bit of sugar. It is used as an ingredient in some types of bread. Initially when the ingredients were mixed together the mixture appeared dead. After a while, it began to bubble and foam and then it tripled in volume. Eventually it stopped bubbling. Every week it is maintained by "feeding” it fresh flour every week. Over time, it will start to develop a 'sour' taste when it is used to make bread. Question After it was mixed together and incubated, why did it eventually stop bubbling? Give two potential reasons.arrow_forwardA bacterium that lives in the human intestine derives its nutrition by digesting the contents of the intestine. Which mode of nutrition best describes this bacterium? A. aerobic chemoheterotroph B. aerobic chemoautotroph C. anaerobic chemoheterotroph D. anaerobic chemoautotropharrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & 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 & Company
Laboratory 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
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Biochemical Tests-Part 1; Author: Southern Stacker;https://www.youtube.com/watch?v=a-i9vANfQWQ;License: Standard Youtube License