Neco Model Questions Vol1 2017 Biology Question 13

Practice objective / multiple choice question 13 from the 2017 Neco Model Questions Vol1 Biology examination.

Neco Model Questions Vol1 2017 Biology Objective / Multiple Choice Hard Difficulty
Question 13 NECO_MODEL_QUESTIONS_VOL1 • 2017 • BIOLOGY • objective

A bacterial culture starts with \(2\times10^{6}\) cells. After 3 h the count is \(1.6\times10^{8}\) cells, and after a further 2 h (i.e., at 5 h total) the count reaches \(6.4\times10^{9}\) cells. Assuming exponential growth \(N = N_{0}\,2^{t/g}\) where \(g\) is the generation time (h),\n\n(a) Determine the generation time during the first 3 h interval.\n(b) Determine the generation time during the second 2 h interval.\n(c) Using the average generation time of the two intervals, predict the cell number after 8 h total culture time. Give your answer in scientific notation to two significant figures.

Answer Options

Correct Answer A. 9.1×10^11
B. 7.5×10^11
C. 8.2×10^11
D. 1.0×10^12
Correct Answer
A
Correct Option:
9.1×10^11

About This Question

This is Neco Model Questions Vol1 2017 Biology Question 13. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Biology examination.

Difficulty level: Hard .

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