Bacteria Growth

Calculate bacterial generation time, number of doublings, and specific growth rates.

Growth Measurements

Initial Count (N₀)

Final Count (Nₜ)

Elapsed Time (min)

Growth Kinetics

18.1min

Generation Time

Total Generations13.29n

Growth Rate0.0554gen/min

Exponential Growth Curve

Overview

Bacteria reproduce via binary fission, where one cell splits into two. In an environment with unlimited resources, this results in exponential growth. This calculator helps determine how fast a population is expanding during its logarithmic (log) phase.

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Pro Tips

Lag Phase: Period of adaptation where cells prepare for division but don't increase in number yet.
Log Phase: Period of constant, maximum growth rate. This is where generation time is calculated.
Stationary Phase: Growth slows as resources become scarce and waste builds up; growth rate equals death rate.
Death Phase: The environment can no longer support the population, leading to a decline in cell numbers.

Fun Facts

"E. coli can double every 20 minutes under ideal conditions; in only 24 hours, one cell could theoretically produce a mass heavier than the Earth!"
"The 'Wood-Ljungdahl' pathway is one of the oldest metabolic pathways used by some bacteria to grow on CO2."
"Some 'extremophiles' can grow at temperatures above 100°C (thermophiles) or in highly acidic environments (acidophiles)."
"Deinococcus radiodurans is a bacterium that can survive 1,000 times the radiation dose that would kill a human."

Formula: G = t / n | n = (log₁₀Nₜ - log₁₀N₀) / log₁₀2

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