During day,decreasing water potential and osmotic potential of guard cells leading up stomatal opening are facilitated by,
hydrolysis of starch into sugars in guard cells.
Synthesis of sugars and malate is guard cells
ATP-driven H+/K+ exchange pump mechanism leading to accumulation of K+ ion in guard cells.
all of above
In plants,transpiration plays an important role in,
ascent of sap
translocation of mineral salts
regulation of temperature
trans location of mineral salts
Guttation occurs through,
hydathodes
stomata
both(a) and (b)
lenticels
In higher plants,water is lost from aerial parts mainly through,
Stomatal transpiration
Cuticular transpiration
lenticular transpiration
leaf
Which one of the following processes is sometimes called as necessary evil?
Transpiration
Guttation
Evaporation
All of above
Which one of the following forms of Co2 has controlling influence on stomatal movement?
Intercellular
Intracellular
Atmospheric
None of the above
