NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice
A bacterium divides every 35 minutes. If a culture containing 10 5 cells per ml is grown for 175 minutes, what will be the cell concentration per ml after 175 minutes?
Options
- A32 X 10 5 cells
- B5 X 10 5 cells
- C35 X 10 5 cells
- D175 X 10 5 cells
Correct answer
A. 32 X 10 5 cells
Step-by-step solution
The 'n', the time difference is 175/35 = 5 minutes, then, 2 n = 2 5 = 32. The culture initially had 10 5 cells/ml, therefore, 32 X 10 5 cells will be present after 175 minutes.