Waec Model Questions Vol1 2019 Biology Question 46
Practice objective / multiple choice question 46 from the 2019 Waec Model Questions Vol1 Biology examination.
A bacterial culture starts with 1.0 × 10³ cells. At its optimum temperature of 37 °C the generation time is 20 min. When the temperature is lowered to 30 °C the generation time increases by 50 %. The culture is kept at 37 °C for the first 2 h and then at 30 °C for the next 3 h. Assuming binary fission, how many cells are present at the end of the 5‑hour period? Give your answer in scientific notation to two significant figures.
Answer Options
About This Question
This is Waec Model Questions Vol1 2019 Biology Question 46. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Biology examination.
Difficulty level: Hard .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.