2. Consider a cell culture A with a population of 1000 and a culture B with a population of 1500. Assume that culture A has a growth constant of 0.05 day -1(exponent) while culture B doubles in size every d days. How long will it be until culture B has 3 times as many cells as culture A?
2006-06-09 17:00:05 · 4 answers · asked by Mary Eda 2 in Education & Reference ➔ Homework Help
A=1000 +.05*t
B=1500+d*t
day^-1 cancels with the unit of time days
3(1000+.05*t)=1500+d*t
3000+.15*t=1500+d*t
3000-1500=d*t-.15*t
1500=d*t-.15*t
1500=(d-.15)t
1500/(d-.15)=t
t is how long it well take.
If d is equal to or less then .15 culture B well never have 3 times as many cells as A.
2006-06-09 17:29:38 · answer #1 · answered by marytormeye 4 · 2⤊ 0⤋
There is something wrong with this question, unless it is a trick question.
For culture B the value of d is not given, therefore its growth constant cannot be calculated and without that growth constant the answer cannot be calculated.
2006-06-10 07:17:39 · answer #2 · answered by Anonymous · 0⤊ 0⤋
ask u pa
2006-06-09 17:18:58 · answer #3 · answered by pele2futb 1 · 0⤊ 0⤋
not that much
2006-06-09 17:07:20 · answer #4 · answered by kaylam186 2 · 0⤊ 0⤋