Discussion
If the doubling time of a strain of bacteria is 30 minutes, how many cells would there be after 5 hours if the original culture had 1 X 105 cells?
*This question is included in 08. Bacteria, question #6
| (A) | 5 X 105 |
| (B) | ... |
| (C) | ... |
| (D) | ... |
| (E) | ... |
| (F) | ... |
The solution is
Posted: 04/14/2013 20:45
Please explain how you derive at the solution (1x10^8)
Posted: 04/16/2013 20:15
Hi Dani. Say we start with n at t=0;
t=1, we have 2n;
t=2, 4n;
t=3, 8n;
t=4, 16n, or 2^t * n;
...
t=10, 2^10 * n = 1024 * 10^5 = about 10^8.
t=1, we have 2n;
t=2, 4n;
t=3, 8n;
t=4, 16n, or 2^t * n;
...
t=10, 2^10 * n = 1024 * 10^5 = about 10^8.