Ascent of sap in higher plant takes place through,
Xylem
Phloem
Parenchyma
None of these
Root pressure can be measured by,
Ganong's potometer
Psychrometer
Mercury Manometer
All of above
Water rises in xylem in the form of __________
Continuous water column
Discontinuous water column
Water vapours
Main force for ascent of sap in higher plants is,
Root pressure
Transpiration pull
Atmospheric pressure
Capillary force
Transpiration pull and cohesion of water theory of ascent of sap was first proposed by,
Dixon
Jolley
Dixon and Jolley
Sachs
The roots absorb water through _______________..
epidermal hairs
root hairs
root xylem
root phloem
Which one of the following plants is the tallest angiosperm?
Sequoia sempervirens
Australian Eucalyptus
Ficus bengalensis
The conduction of soluble materials from one part of the plant to another.
transpiration
translocation
guttation
none of these
The ascent of sap in plants takes place due to
root pressure
transpiration pull
both a and b
osmosis
