Combined Science GCSE
Stomata and gas exchange
What Stomata and gas exchange means in Combined Science GCSE, as defined for AQA.
Definition of Stomata and gas exchange
Check what you remember
Read the wording for your board, then hide it and explain Stomata and gas exchange in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Tiny pores, each surrounded by two guard cells, that open to allow carbon dioxide in for photosynthesis and close to reduce water loss.
Topics that use Stomata and gas exchange
- Plant organ system (AQA GCSE)
Related terms
- Active transport
- Calculating rates from measurements
- Cell specialisation and adaptation
- Cellular control of pore size
- Data presentation
- Describing relationships between variables
- Gas exchange
- Graph interpretation and proportionality
Using Stomata and gas exchange in the exam
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