Biology A-Level
Rate calculation
What Rate calculation means in Biology A-Level, as defined for OCR.
Definition of Rate calculation
Check what you remember
Read the wording for your board, then hide it and explain Rate calculation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Volume transpired is calculated from bubble distance multiplied by the capillary tube's cross-sectional area, giving a rate per unit time.
Topics that use Rate calculation
- Transport in plants (OCR A-Level)
Related terms
- Cohesion and adhesion
- Control of environmental variables
- Hydrophyte
- Osmosis
- Potometer
- Source-to-sink transport of assimilates
- Surface area to volume ratio in plants
- Thin sections
Using Rate calculation in the exam
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