Why seeds kept in water swell up?
OP inside the seed is low.
OP of water is high.
Water potential gradient develops between the seed coat and water.
Diffusion pressure deficit of seed is very high.
Why do seeds kept in water swell up?
why seeds soaked in water swell up after some time?
Seeds swells when placed in water because of :
The seed obtains water from the environment. The seed swells and consequently the seed coat ruptures allowing the elongating radicle to come out and form the root system.