Biology (Combined Science) · GCSE · OCR · OCR GCSE Combined Science A (Gateway Science) — Biology — Foundation (J250) · Specification point · B3.3 · Organism level systems
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B3.3 Maintaining internal environments
Summary Homeostasis is crucial to the regulation of internal environments and enables organisms to adapt to change, both internally and externally. Internal temperature, blood sugar levels and osmotic balance are regulated by a number of organs and systems working together.
Underlying knowledge and understanding Learners will build on the knowledge and understanding gained in section 3.1 about coordination and control when considering the topics in this section.
| Reference | Mathematical learning outcomes | Maths skills |
|---|---|---|
BM3.3i | extract and interpret data from graphs, charts and tables | M2c |
| Learning outcomes | To include | Maths | Working scientifically | Practical suggestions |
|---|
B3.3a explain the importance of maintaining a constant internal environment in response to internal and external change | allowing metabolic reactions to proceed at appropriate rates | WS1.4a | Research into hypothermia. | |
B3.3b explain how insulin controls blood sugar levels in the body | M2g | |||
B3.3d compare type 1 and type 2 diabetes and explain how they can be treated |