a. Some microbes can utilize fermentation to make ATP. Compare and contrast fermentation and aerobic respiration, including the typical inputs and outputs of each. b. Two liquid culture flasks of E. coli are grown in the same medium (2% glucose and amino acids) and at the same temperature (37°C). Culture #1 is well aerated. Culture #2 is 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%. Why does Culture #2 have so little glucose remaining relative to Culture #1, even though Culture #2 displayed slower growth and has less biomass?

a. Some microbes can utilize fermentation to make ATP. Compare and contrast fermentation and aerobic respiration, including the typical inputs and outputs of each. b. Two liquid culture flasks of E. coli are grown in the same medium (2% glucose and amino acids) and at the same temperature (37°C). Culture #1 is well aerated. Culture #2 is 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%. Why does Culture #2 have so little glucose remaining relative to Culture #1, even though Culture #2 displayed slower growth and has less biomass?

Body Structures & Functions Updated

13th Edition

ISBN:9780357191606

Author:Scott

Publisher:Scott

Chapter16: Infection Control And Standard Precautions

Section: Chapter Questions

Problem 6RQ

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