Question

Consider the following hypothetical conditions: A population of 10,000 bacteria has a doubling time of 20 minutes under a given set of growth conditions. The culture is allowed to grow for 2 hours. Select the number of bacteria that best predicts the population size at the end of the two hour incubation period. Assume there is no lag phase.a) 40,000b) 640,000c) 1,280,000d) 320,000e) 160,000

Answer 1

Answer:

b) 640,000

Explanation:

Given:

Initial population = 10,000

Doubling time= 20 minutes

total culture allowed time = 2 hours

after 2 hours  final bacterial population is 640,000

calculation:

10,000 doubles after 20 minutes = 20,000 and so on... final population after 2 hours = 640,000.