Year 11 – Units 1 & 2 Unit 1, Topic 1 Cells as the basis of life Unit 1, Topic 3 Cellular energy, gas exchange and plant physiology Unit 2, Topic 2 Infectious disease and epidemiology Unit 1, Topic 2 Exchange of nutrients and wastes Unit 2, Topic 1 Homeostasis — thermoregulation and osmoregulation Revision Resources Unit 1 and 2 revision resources…so you’re ready to take those exams!