IB Biology D2.3 Definitions
This page contains our IB Biology definitions for D2.3. By learning each one of these definitions, you will fully cover the content for IB Biology 'Further water potential'.
Flaccid
A state where the plant cell has lost water and turgor pressure, causing it to become limp
Hydrostatic Pressure
The pressure exerted by a fluid in a closed system, affecting water potential
hypertonic
A solution with a higher solute concentration than another solution
hypotonic
A solution with a lower solute concentration than another solution
isotonic
A solution with the same solute concentration as another solution
osmosis
The movement of water from a region of low solute concentration to a region of high solute concentration, across a partially permeable cell membrane
Plasmolysis
The process in which cells lose water in a hypertonic solution, causing the cell membrane to pull away from the cell wall and leaving the cell flaccid
Turgor Pressure
The pressure exerted by water inside the cell against the cell wall, contributing to the plant cell's rigidity
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