Biology / Unit 2 Bio 0285 short lesson, about 20 seconds
The Central Vacuole
Captions available
The idea
The central vacuole is a large plant organelle regulating the cell's water content and supporting its expansion without needing new cytoplasm.
In practice
A plant wilts when its central vacuole loses water faster than the soil replaces it, leaving the wall unsupported.
Where people slip
The vacuole supports the wall through water pressure; losing that water leaves the wall intact but unsupported.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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