Question

Which among the following is not an objection to root pressure theory?

(a) The rapidly transpiring plants do not show any root pressure

(b) Root pressure has been found in all plants

(c) Water continues to rise even in the absence of roots

(d) It is seen only during the most favourable periods of growth like spring or rainy season

Answer 1

Answer is : (b) Root pressure has been found in all plants

Root pressure is a positive hydrostatic pressure developed in xylem vessels due to the metabolic activities of roots. The root pressure has not been found in all plants.

Rest all the statements are correct regarding the objections to root pressure theory.