Question

Transpiration causes 

1) Transpiration pull

2) Root pressure

3) None of the abovr​

Answer 1

Answer:

Transpiration is the loss of water from the plant through evaporation at the leaf surface. It is the main driver of water movement in the xylem. Transpiration is caused by the evaporation of water at the leaf–atmosphere interface; it creates negative pressure (tension) equivalent to –2 MPa at the leaf surface.

Answer 2

Answer:

Transpiration causes transpirational pull, which is majorly responsible for ascent of sap.

Meanwhile root pressure is the pressure occurring in roots due to the continuous movement of water into the roots. Root pressure causes the process of guttation on thin leaf surfaces.