Biology A-Level
gradient
What gradient means in Biology A-Level, as defined for AQA.
Definition of gradient
Check what you remember
Read the wording for your board, then hide it and explain gradient in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A steeper concentration or water potential gradient increases the rate of net movement.
Topics that use gradient
- Transport across cell membranes (AQA A-Level)
Related terms
- active transport
- betalain pigment leakage
- calibration curve
- colorimetry and absorbance
- cristae
- Fluid mosaic model
- glycoproteins and glycolipids
- hydrophilic heads and hydrophobic tails
Using gradient in the exam
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