Question

The process responsible for the movement of water from soil into the roots of plant is

• A. Evaporation of water from the leaves.
• B. Capillary action.
• C. Both A and B.
• D. Osmosis.
• E. Active transport.

Answer 1

The correct option is C Both A and B.

When soil moisture is high, movement of water and dissolved minerals from soil into root hair and finally to the root xylem cells build up root pressure which in turn pushes the water up the xylem vessels. The increased soil moisture and the high root pressure causes increased rate of water absorption which in turn forces water droplets to come out from stomata and hydathodes. Lenticular and stomatal transpiration creates transpiration pull which in turn carry the water and minerals up in stem thereby decreasing root pressure.

Therefore, the correct answer is option A.