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Two flasks of E. coli are grown in batch culture in the same medium (2% glucose supplemented with other macro- and micro-nutrients; no nitrate, no sulfate) and at the same temperature (37°C). Culture #1 is well aerated. Culture #2 is static and anoxic. After 16 hours the following observations are made: Culture #1 has a high cell density; the cells appear to be in stationary phase, and the glucose level in the medium is reduced to 1.2%. Culture #2 has a low cell density; the cells appear to be in logarithmic phase, although their doubling time is prolonged (over 1 hour). The glucose level is reduced to 0.2%.
Question: Why did culture #2 have so little glucose remaining relative to culture #1, even though culture #2 displayed slower growth and had less biomass?
And refer to the "electron tower", why a chemotrophic microorganism cannot use water as the electron donor and nitrate as the electron acceptor for energy conservation?
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What was it, then, that led Ann Sayre to suggest that Franklin had been treated unethically as a result of the use of her findings
Purple eye color in fruit flies is an autosomal recessive trait whereas the normal eye color in fruit files (brick color) is an autosomal dominant trait.
What are the principle objectives of each of the four subsystems of the budget execution phase?
List and provide examples illustrating the four major threats to biodiversity
Database Reverse Engineering
Mary is less fearful of death than many older people her age. According to the text, a major reason for Mary's diminished fear of death probably is her
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