0:00
This question.
00:03
So given data.
00:08
An exponential growing bacterial culture has a specific grow rate constant of 0 .750 cells per militer per hour.
00:20
So k or specific grow rate constant equals 0 .750.
00:30
Next, the culture grill for 4 hours without any luck and the final cell density was 2 .3 times 10 in power 6 cells per militer.
00:44
So time of cultivation t equals 4 hours and the final concentration c equals 2 .33 times 10 in power 6 cells per milliliter.
01:07
The cell density at zero time, b, what is the generation time in minutes? so we have two tasks to calculate the initial concentration c zero and b to calculate the doubling time in minutes.
01:43
So let's review the formula for the exponential bacterial growth.
01:50
So the concentration in some period of time equals the initial concentration, the 0, times exponent in the power k times t.
02:05
K is a specific grow rate constant and t time.
02:10
Let's calculate the task a.
02:13
The initial population density.
02:19
So let's solve...