In old trees or woody plants transpiration occur through
a) stomata
b) leaves
c) bark
d) lenticels
lenticels are the small pores in the bark of stem
In the process of transpiration the water from ground to the root moves due to
a) turgidity
b) gravity
c) guttation
d) osmosis
In hot sunny day water in plants is
a) move upward
b) move to lowered part
c) move to lateral side
d) pushed up
Mild day closure of stomata is due to
a) excessive transpiration
b) more photosynthesis
c) high speed of wind
d) high temperature
Stomata are widespread in plant kingdom except………
a) algae
b) fungi
c) bryophytes
d) both a and b
Basis of stomatal opening is ….
a) endosmosis
b) exosmosis
c) guard cells
d) cell sap
