Waec Model Questions Vol1 2021 Biology Question 23

Practice objective / multiple choice question 23 from the 2021 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2021 Biology Objective / Multiple Choice Hard Difficulty
Question 23 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • BIOLOGY • objective

In a bacterial culture the cell number increased from 2.0 × 10⁶ to 1.6 × 10⁸ in 4 hours. Assuming exponential growth:

Answer Options

Correct Answer A. Generation time ≈ 38 min; cell number after 10 h ≈ 1.1 × 10¹¹
B. Generation time ≈ 50 min; cell number after 10 h ≈ 8.0 × 10¹⁰
C. Generation time ≈ 30 min; cell number after 10 h ≈ 2.2 × 10¹¹
D. Generation time ≈ 45 min; cell number after 10 h ≈ 5.0 × 10¹⁰
Correct Answer
A
Correct Option:
Generation time ≈ 38 min; cell number after 10 h ≈ 1.1 × 10¹¹

About This Question

This is Waec Model Questions Vol1 2021 Biology Question 23. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Biology examination.

Difficulty level: Hard .

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