TopicBacterial growthLevelGCSE (or any other course for students aged 14-16) Ouctomes1.To calculate how many bacteria are present after 24h 2.To appreciate.

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TopicBacterial growthLevelGCSE (or any other course for students aged 14-16) Ouctomes1.To calculate how many bacteria are present after 24h 2.To appreciate why bacterial infections are potentially so dangerous | resources for science teachers who like to think

E. coli divides about once every 20 minutes. If a patient was infected with one bacterium, how many bacteria would there be after 24 hours?

Assume the patient had a mass of 72 kg before infection and each bacterium has a mass of 9.5 x g. What would be the new mass of the patient? Why in reality does the patient not reach this mass?

Working out 24 hours = 1440 minutes 1440/20 = 72 divisions Each division doubles the number 2 72 = bacteria