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Calculate how long (in hours) it will take for a culture of E. coli to reach...
Know how to calculate how long it will take an amoeba to reach a certain mass...
Know how to calculate how long it will take an amoeba to reach a certain mass (in this questions, it was the mass of an elephant, which we had to guess ourselves), we were given that the doubling time for an amoeba is 23 hours. Also, remember that the size of an amoeba is the size of an average eukaryotic cell, not a bacterial cell. Find number of proteins in an amoeba, knowing that the concentration of proteins in an...
Consider a culture of E. coli growing in exponential phase with a generation time of 20...
Consider a culture of E. coli growing in exponential phase with a generation time of 20 minutes. Beginning with 2 x 106 cells per ml, how long will it take the culture to reach a density of about 3.2 x 107 cells per ml?
An E. coli culture is grown in a variety of very rich media. With a number...
An E. coli culture is grown in a variety of very rich media. With a number of the media you are able to reduce the generation time to 20 mins. No further additions to the media reduce the doubling time below 20 mins. The supply of nutrients and building blocks are not limited. What factors could be limiting the growth rate of the cell?
using maximum speed of Cassini, how long would it take a spacecraft to reach Jupiter if...
using maximum speed of Cassini, how long would it take a spacecraft to reach Jupiter if it flew directly there when Jupiter was at its closest distance to earth?
E. coli has a doubling time of 20 minutes, if a piece of meat is contaminated...
E. coli has a doubling time of 20 minutes, if a piece of meat is contaminated with 1 E. coli cell how many cell would it contain after 12 hours? What about 24 hours?
3. You inoculate 1 liter of medium with an E. coli culture to an initial cell...
3. You inoculate 1 liter of medium with an E. coli culture to an initial cell density of 104 cells/ml. The culture grows exponentially with a generation time of 20 minutes. What is the culture density after 24 hours?
E. Coli has a doubling time of 20 minutes under certain growth conditions. Compute the biomass...
E. Coli has a doubling time of 20 minutes under certain growth conditions. Compute the biomass of E. coli (in pounds) that will accumulate when a single cell of E. coli grows exponentially for 50 hours in these conditions, assuming that nutrients are not limiting. Show your work. (An E. Coli cell has a mass of 10-12gram/cell).
How long does it take, in minutes, for light to reach Earth from the Sun, a...
How long does it take, in minutes, for light to reach Earth from the Sun, a distance of 1.556 x 108 km? time: 4.69 x10-19 min Incorrect
Calculate how long it would take the Earth to fall into the Sun if its orbital...
Calculate how long it would take the Earth to fall into the Sun if its orbital motion were stopped. Then, instead of the Earth, imagine a second 1 solar mass star orbiting the Sun. Start with the equations of motion and calculate how long it would take for the two stars to crash into each other.
7. (10 points) E. Coli bacteria were grown in a 20 L batch cell culture reactor,...
7. (10 points) E. Coli bacteria were grown in a 20 L batch cell culture reactor, with the following data collected: Inoculation Time ---> Time 11:27 am 11:43 am 12:16 pm 1:19 pm 1:27 pm 1:42 pm 1:54 pm 2:05 pm 2:17 pm 2:41 pm Cell Count (per mL) 10,277,000 10,313,000 29,750,000 224,750,000 229,216,000 229,115,000 227,260,000 204,935,000 183,745,000 146,103,000 A. Draw a log10 X vs. time graph and label the phases for batch cell growth. B. Calculate the specific growth...
How long does it take, in minutes, for light to reach Earth from the Sun, a distance of 1.556 x 108 km? time: 4.69 x10-19 min Incorrect
7. (10 points) E. Coli bacteria were grown in a 20 L batch cell culture reactor, with the following data collected: Inoculation Time ---> Time 11:27 am 11:43 am 12:16 pm 1:19 pm 1:27 pm 1:42 pm 1:54 pm 2:05 pm 2:17 pm 2:41 pm Cell Count (per mL) 10,277,000 10,313,000 29,750,000 224,750,000 229,216,000 229,115,000 227,260,000 204,935,000 183,745,000 146,103,000 A. Draw a log10 X vs. time graph and label the phases for batch cell growth. B. Calculate the specific growth...
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