Waec Model Questions Vol1 2017 Biology Question 41

Practice objective / multiple choice question 41 from the 2017 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2017 Biology Objective / Multiple Choice Hard Difficulty
Question 41 WAEC_MODEL_QUESTIONS_VOL1 • 2017 • BIOLOGY • objective

A bacterial culture initially contains 2.0×10³ cells. After 5.0 h of incubation at optimal temperature, the cell count rises to 5.12×10⁵ cells. (i) Determine the generation time of the bacterium in minutes. (ii) An antibiotic is then added, which lengthens the generation time by 20 %. Starting from the cell count at the end of the 5‑hour period, how many additional hours are required for the culture to reach 1.0×10⁸ cells? Give your answer to two decimal places.

Answer Options

A. 6.04 h
Correct Answer B. 5.71 h
C. 4.32 h
D. 5.00 h
Correct Answer
B
Correct Option:
5.71 h

About This Question

This is Waec Model Questions Vol1 2017 Biology Question 41. It is one of the objective questions from the 2017 Waec Model Questions Vol1 Biology examination.

Difficulty level: Hard .

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