Difference between active and passive absobtion.

Dear student
1. passive                                                                           1. active
a) absorption utilises solar energy.                                       a) absorption of water utilises metabolic energy .
b) there is no absorption of  water due to absence of root  .  b)roots absorb water by their own.
c)It takes place when transpiration is high                             c)It takes place when transpiration is low .
d) absorption rate is comparatively fast .                                d)absorption is comparatively slow.
Regard