Microbiology: Principles and Explorations
10th Edition
ISBN: 9781119390114
Author: Black
Publisher: WILEY
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Chapter 1, Problem 2.4SC
Why was the French microbiologists’ method of broth dilution inadequate for obtaining pure cultures of organisms?
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Chapter 1 Solutions
Microbiology: Principles and Explorations
Ch. 1 - List three reasons to study microbiology.Ch. 1 - What is the difference between microbiology and...Ch. 1 - Prob. 1.3SCCh. 1 - List five bacterial diseases and five viral...Ch. 1 - Prob. 2.1SCCh. 1 - State the germ theory of disease. Try to think of...Ch. 1 - How did Pasteurs experiment with swan-necked...Ch. 1 - Why was the French microbiologists method of broth...Ch. 1 - What were the scientific contributions of Jenner,...Ch. 1 - Prob. 3.2SC
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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 did pasteur prove when he showed that a cotton plug that had filtered air would trigger microbial growth when transferred to a sterile medium?what argument made previously was he addressingarrow_forwardNoah wanted to transfer Staphylococcus aureus from a broth to an agar plate. He picked up the broth culture, removed the cap, and flamed the mouth of the tube. He inserted an inoculating loop to obtain a bacterial sample. Then, he flamed the mouth of the tube and replaced the cap. Noah opened the lid of a labeled agar plate diagonally and used the loop to streak the surface of the agar. After closing the lid, he flamed the loop in an incinerator and put it back in its container. The plate was incubated upside down for 24–48 hours. What did Noah do wrong in this transfer? a. He did not use the transfer tool correctly. b. He did not handle the culture tube correctly. c. He did not handle the agar plate correctly. d. He used the wrong tool in transfer.arrow_forwardWhat other fields of science besides microbiology is the aseptic technique used?arrow_forward
- Are the large numbers of microorganisms found in the mouth cause for concern? Explain. How can you determine whether a culture or subculture is pure? What kinds of clinical speciments may yield a mixed flora in bacterial cultures? Why was a blood agar, rather than a nutrient agar, plate used for the culture from your mouth?arrow_forwardIn the preparation of a bacterial smear, why is there a need to fix the bacteria to the slide? Aside from passing the slide over a flame, what are the other ways of fixing the bacteria to the slide?arrow_forwardWhy do we use broth for enrichment, but plates for isolation and identification?arrow_forward
- If 1.0 mL of a 1:1000 dilution produces 200 colonies on a culture plate, how many bacteria were present per mL in the original (undiluted) sample? 200,000 20,000 2,000 200arrow_forwardAs a microbiology student, how can you prevent or control coliform contamination in drinking water of your respective communityarrow_forwardIn 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_forward
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