Laboratory Experiments in Microbiology (11th Edition)
11th Edition
ISBN: 9780321994936
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Textbook Question
Chapter 14, Problem 1CT
Could an organism be a fermenter and also be both MR and V—P negative? Explain.
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Chapter 14 Solutions
Laboratory Experiments in Microbiology (11th Edition)
Ch. 14 - Why are fermentation tubes evaluated at 24 and 48...Ch. 14 - If an organism metabolizes glucose aerobically,...Ch. 14 - Which of these media is selective?...Ch. 14 - Could an organism be a fermenter and also be both...Ch. 14 - How could you determine which of the following...Ch. 14 - If a bacterium cannot ferment glucose, why not...Ch. 14 - If a bacterium cannot use glucose, what result...Ch. 14 - If a bacterium cannot use citrate, what result...Ch. 14 - You put an opened bottle of orange drink in the...
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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
- What are the characteristics of an effective indicator organism? Write down some examples. Suppose you filtered a sample and found the Fecal Coliform count to be 20 CFU/100ml but the Total Coliform count was 0 CFU/100ml, do you think this result is correct? If so, why/why not?arrow_forwardExplain why it is important to wash the wells with PBS between the additions of each reagent?arrow_forwardIn the multiple fermentation tube technique does the absence of gas formation after 24 hours constitute a negative presumptive test for coliform bacteria? Explain.arrow_forward
- Why are the Methyl Red/Voges-Proskauer tests done after 48 hours of incubation?a) Readings taken at earlier time points may be different from readings taken at 48 hours b) Bacteria need 48 hours to process all the oxygen in the media c) Bacteria grow slowly in the MR/VP media d) K2HPO4 needs 48 hours to react with the acids produced by fermenting bacteriaarrow_forwardHow are the working principles of fermenters divided? Explain briefly. Which type is the most preferred?arrow_forwardin a leachate experiment where we put banana peels in a container to observe for 4 weeks. what are the factors that potentially caused the notable physical changes in the decomposing material? Discuss the effect of each factor the set ups.arrow_forward
- Sketch graphs expected for the Product concentration Vs substrate concentration.arrow_forwardA) Explain in detail about landfill system B) List four difference between fermentation and anaerobic digestion systemarrow_forwardWould the standard curve obtained with E. coli grow in TSB broth be valid to measure an E. coli culture growing in NB explainarrow_forward
- If the result of an unknown bacteria is “poor growth” and “red growth,” can this result be interpreted as “organism does not ferment mannitol?” Explain why or why not. If the result of an unknown bacteria is “good growth” and “yellow growth,” is the unknown bacteria more likely Staphylococcus aureus or Staphylococcus epidermidis?arrow_forwardWhy only specific microbes are selected to produce the fermented products?arrow_forwardn terms of oxygen requirements, what type of organism would most likely be responsible for a foodborne illness associated with canned foods?arrow_forward
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