Neco Model Questions Vol1 2017 Biology Question 38
Practice objective / multiple choice question 38 from the 2017 Neco Model Questions Vol1 Biology examination.
A bacterial culture is inoculated with \(1.0 \times 10^{6}\) cells. At \(30^{\circ}\)C the cell number rises to \(8.0 \times 10^{6}\) after 2 h, whereas at \(37^{\circ}\)C it rises to \(2.0 \times 10^{7}\) after the same period. Assuming exponential growth (\(N = N_{0} 2^{t/g}\)),\n\n(a) Determine the generation time (\(g\)) at each temperature.\n(b) If after 4 h at \(30^{\circ}\)C the culture is shifted to \(37^{\circ}\)C, what will be the cell count after a further 2 h? (Give the answer in scientific notation to two significant figures.)
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This is Neco Model Questions Vol1 2017 Biology Question 38. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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