The difference between active absorption and passive absorption is as follows:
Active absorption |
Passive absorption |
It occurs due to the activity of roots and particularly roots hair. |
It occurs due to the activity of shoot and leaves. |
Active absorption is due to the osmotic and non-osmotic mechanisms. |
Passive obsorption is due to active transpiration in the upper parts. |
Active absorption involves symplast movement of water in roots hairs. |
In passive absorption, water moves probably through the free spaces or apoplast of the root. |