NB: This is a BIOLOGY (SEPARATES) ONLY lesson
Preventing bacterial growth in the lab lesson created in accordance to the NEW AQA Specification (9-1). Includes: slide animations, embedded videos, differentiated questions, answers and homework have also been included within the slides. This resource is NOT suitable for combined science students.
AQA spec link: 184.108.40.206
Relevant chapter: B5-Communicable diseases . AQA Biology third edition textbook-Page 80-81.
1.1.6 Bacteria multiply by simple cell division
(binary fission) as often as once every 20 minutes if they have enough nutrients and a suitable temperature.
Students should be able to calculate cross-sectional areas of colonies or clear areas around colonies using r². Students should be able to calculate the number of bacteria in a population after a certain time if given the mean division time.
Students should be able to express the answer in standard form.