Biology A-Level
Potometer
What Potometer means in Biology A-Level, as defined for OCR.
Definition of Potometer
Check what you remember
Read the wording for your board, then hide it and explain Potometer in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Apparatus used to estimate transpiration rate indirectly by measuring water uptake, with a shoot sealed into a capillary tube containing an air bubble.
Topics that use Potometer
- Transport in plants (OCR A-Level)
Related terms
- Cohesion and adhesion
- Control of environmental variables
- Hydrophyte
- Osmosis
- Rate calculation
- Source-to-sink transport of assimilates
- Surface area to volume ratio in plants
- Thin sections
Using Potometer in the exam
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