Stomata are present on the __________ of the leaves.

Transpiration pull and  cohesion of water theory of ascent of sap was first proposed by,

 The cells that are full of water and rigid are called ________.

High root pressure can cause water to be lost by leaves through the process of

Which one of the following plants is the  tallest angiosperm?

Main  force  for ascent of sap in higher plants is,

_________ and _________ are non living plant tissues which help in conducting water and minerals dissolved in water from roots to upper parts of the plant.

Ascent of sap in higher plant  takes  place through,