Microbiology: Principles and Explorations
10th Edition
ISBN: 9781119390114
Author: Black
Publisher: WILEY
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Chapter 7, Problem 2.2SC
What enzymes do most obligate anaerobes lack? How does this cause them to die in the presence of oxygen?
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Chapter 7 Solutions
Microbiology: Principles and Explorations
Ch. 7 - What are the differences between the lag phase and...Ch. 7 - How does logarithmic rate of increase differ from...Ch. 7 - Prob. 1.3SCCh. 7 - Why does a direct microscopic count of bacteria...Ch. 7 - What does the ending -phile mean? Distinguish...Ch. 7 - What enzymes do most obligate anaerobes lack? How...Ch. 7 - Prob. 2.3SCCh. 7 - Prob. 3.1SCCh. 7 - Distinguish between the various kinds of media:...Ch. 7 - What is the purpose of a stock culture? Why is it...
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- If Clostridium botulinum is an anaerobe, how might botulinum toxin get into food?arrow_forwardName two enzymes that are present in obligate aerobes but lacking in obligate anaerobes. What is the function of each enzyme?arrow_forwardA chemolithoautotroph is respiring using only iron (Fe3+) and nitrite (NO2-). This bacterium does not consume organic molecules. From where does this organism obtain its carbon?arrow_forward
- Out of the 5 possible oxygen requirements (Obligate aerobes, microaerophiles, etc), what specifically is E. coli, Pseudomonas aeruginosa, and Clostridium sporogenes?arrow_forwardMicroaerophiles A) O do not require oxygen for growth B) O are the same as facultative anaerobes C) O have the same oxygen reguirements as aerotolerant anaerobes D) O completely lack enzymes protecting them from the damaging effects of oxygen. E O None of the above are correctarrow_forwardWhat is obligate aerobes and obligate anaerobe? Give examples.arrow_forward
- Why is Hydrogen peroxide solution so effective against anaerobes?arrow_forwardRequires oxygen at a lower concentration than typically found in air. Question 3 options: a) Obligate aerobe b) Facultative anaerobe c) microaerophile d) None of the abovearrow_forwardWhy does an optional anaerobic bacterium usually grow better with oxygen?arrow_forward
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