Question

Which of the following is an active process :. 1.diffusion 2.osmosis. 3.imbibition ​

Answer 1

Imbibition is active process bcoz diffusion and osmosis are passive process it is due to concentration

Answer 2

Answer:

Among these three imbibition is an active process. Imbibition takes place when water enters into seeds. The water distributes to the crevice in the seed coat and is absorbed by the seed tissue. Water uptake rate measurements taken during this phase have shown these as

1)temperature-dependent

2)accompanied by increases in respiration rate and light sensitivity in some seed species.

These observations indicate that water uptake during imbibition is not a ‘passive’ process, but becomes an active one at an early stage. The end of this phase is noted by an asymptotic approach to a final water gain, or hydration level, which depends on seed-soil contact, soil conductivity to water and seed composition.

whereas the other two which are diffusion and osmosis are not active processes.