In the absence of transpiration, water moves into and up xylem because of
root pressure
turgor pressure
high soil mineral concentration
low soil mineral concentration
Main force for ascent of sap in higher plants is
Root pressure
Transpiration pull
Atmospheric pressure
Capillary force
High root pressure can cause water to be lost by leaves through the process of
transpiration
guttation
translocation
osmosis
The transport of water in plants occurs by the process of ______
ascent of sap
none of these
Cohesive force of water is due to presence of,
Hydrogen bonds between water molecules
Covalent bonds between water molecules
Hydrogen bonds between water and components of xylem walls
None of these
Water rises in xylem in the form of
Continuous water column
Discontinuous water column
Water vapours
The cells that are full of water and rigid are called
support cells
flaccid
turgid
Most of the transpiration takes place through
stomata
lenticels
cuticle
epidermis
Which one of the following plants is the tallest angiosperm?
Sequoia sempervirens
Australian Eucalyptus
Ficus bengalensis
Pine tree
_________ and _________ are non living plant tissues which help in conducting water and minerals dissolved in water from roots to upper parts of the plant.
Xylem vessels, Tracheids
Pholem vessels, Sieve tubes
Aerenchyma , Sclerenchyma
Collenchyma and Parenchyma
