Extreme thermophiles (hyperthermophiles) are active a. in temperate zone soils on hot, sunny days. b. in recently fallen meteorites that are still too hot to handle with bare hands. c. in very hot geothermal environments. d. in steel mills. Enrichment of a fast growing bacterial species from a sample in which it is not abundant may employ: a. Serial dilution using sterile physiological saline or other common diluent. b. Inoculation and incubation through multiple transfers to fresh media. c. Preincubation in the refrigerator. d. Use of beer as a medium supplement. Which of the following sequences of electron carriers could represent a workable bacterial electron transport chain? a. cytochromes, followed by an iron-sulfur protein, and quinones. b. quinones, cytochromes, iron-sulfur proteins, and a flavoprotein. c. a flavoprotein, followed by an iron-sulfur protein, quinones, and cytochromes. d. cytochromes, followed by quinones and a flavoprotein.
Microbial Physiology
Microbial physiology is the branch of microbiology that is associated with studying the physiology of fungi, bacteria, and viruses. It is an important field of science concerning functional genomics and metabolic engineering.
Chemotaxis
The organism’s movement in a particular direction as a response to certain chemicals that are available in the environment is defined as chemotaxis. In brief, it can be defined as the occurrence of an organism’s movement in response to a certain chemical stimulus.
Extreme thermophiles (hyperthermophiles) are active
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a. in temperate zone soils on hot, sunny days. |
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b. in recently fallen meteorites that are still too hot to handle with bare hands. |
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c. in very hot geothermal environments. |
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d. in steel mills. |
Enrichment of a fast growing bacterial species from a sample in which it is not abundant may employ:
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a. Serial dilution using sterile physiological saline or other common diluent. |
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b. Inoculation and incubation through multiple transfers to fresh media. |
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c. Preincubation in the refrigerator. |
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d. Use of beer as a medium supplement. |
Which of the following sequences of electron carriers could represent a workable bacterial electron transport chain?
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a. cytochromes, followed by an iron-sulfur protein, and quinones. |
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b. quinones, cytochromes, iron-sulfur proteins, and a flavoprotein. |
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c. a flavoprotein, followed by an iron-sulfur protein, quinones, and cytochromes. |
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d. cytochromes, followed by quinones and a flavoprotein. |
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