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

Difficulty level: Hard .

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