Correct.

In the bacterial growth experiment you have just performed with E. coli, the growth rate constant (µ) was 2.18 hour-1 (i.e. 2.18 doublings per hour) and the mean generation time (g) (or "doubling time") was 0.32 hours (19.2 minutes).

How does this compare with other bacteria?

Organism Optimum Growth Temperature Doubling Time (hours)
Bacillus stearothermophilus 60 0.15
Escherichia coli 37 0.3
Bacillus subtilis 40 0.43
Pseudomonas putida 30 0.75
Vibrio marinus 15 1.35
Mycobacterium tuberculosis 37 6
Nitrobacter agilis 27 20

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