Question 43

(Multiple Choice)

A 0.1 ml sample of a log phase culture contains 10,000 bacterial cells/ml. It is added to 9.9 ml of fresh culture medium broth. Assume a generation time of 30 minutes, and no limiting nutrients. How many bacteria will be present in the entire broth culture after five hours?


A) 3.2 × 10⁴
B) 5.0 × 10⁵
C) 1.02 × 10⁶
D) 6.0 × 10⁶
E) 2.56 × 10⁷

Answer