Topic B3.3: Maintaining internal environments (OCR Gateway A GCSE Combined Science)

This bundle of 3 lessons covers all of the content in the sub-topic B3.3 (Maintaining internal environments) of the OCR Gateway A GCSE Combined Science specification. The topics covered within these lessons include:

The importance of maintaining a constant internal environment in response to internal and external change
Explain how insulin controls blood sugar levels
Explain how glucagon controls blood sugar levels
Compare type I and II diabetes

All of these lesson presentations and accompanying resources are detailed and engaging and contain regular progress checks to allow the students to constantly assess their understanding.