Questions in plant-water-relation

Select	Question
	Which statement is correct
	What will be the direction of movement of water, when a solution A having water potential of - 9 bars and another solution B of - 4 bars is separated by a semipermiable membrane
	Osmotic pressure of a solution is
	The potential energy of water is referred to as
	Water is necessary for_____
	Sap ascends in woody stems because of root pressure and
	Most widely accepted explanation for the ascent of sap in tree is
	The most important force which pulls water up in tall trees is
	Roots will absorb water when external medium will be
	Which can function as carrier in active ion absorption