Neco Model Questions Vol1 2023 Biology Question 28

Practice objective / multiple choice question 28 from the 2023 Neco Model Questions Vol1 Biology examination.

Neco Model Questions Vol1 2023 Biology Objective / Multiple Choice Hard Difficulty
Question 28 NECO_MODEL_QUESTIONS_VOL1 • 2023 • BIOLOGY • objective

In a batch culture a bacterial population increases from \(2.0 \times 10^{6}\) cells to \(1.6 \times 10^{8}\) cells in 4 hours. Assuming exponential growth, (i) calculate the generation (doubling) time in minutes, and (ii) predict the cell number after 7 hours of culture.

Answer Options

A. Generation time ≈ 30 min; after 7 h ≈ 6.0 × 10⁹ cells
Correct Answer B. Generation time ≈ 38 min; after 7 h ≈ 4.3 × 10⁹ cells
C. Generation time ≈ 45 min; after 7 h ≈ 2.5 × 10⁹ cells
D. Generation time ≈ 50 min; after 7 h ≈ 1.2 × 10⁹ cells
Correct Answer
B
Correct Option:
Generation time ≈ 38 min; after 7 h ≈ 4.3 × 10⁹ cells

About This Question

This is Neco Model Questions Vol1 2023 Biology Question 28. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Biology examination.

Difficulty level: Hard .

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