Water potential in plant is equal to……
a) solute potential
b) pressure potential
c) sum of both a and b
d) difference of both a and b
Water potential is represented by……..
a) β W
b) ΩW
c) ΨW
d) ¥ W
The solute potential or osmotic potential is a measure of the change in the water potential due to the presence of …….. molecules.
a) water
b) solute
c) solvent
d) both a and b
Explanation: it is represented by Ψs and measured in KPa
Pressure potential is representation of turgor pressure developed as a result of……..by the cell sap.
a) exosmosis
b) endosmosis
c) endocytosis
d) exocytosis
Explanation: it is represented by Ψp and measured in KPa
Water and minerals from te soil to the xylem move by the way of ……..and through vacuoles.
a) appoplast
b) symplast
c) both a and b
d) none of them
Explanation: Apoplast: In apoplast the movement of water occurs through bulk or massflow and it doesn't provide any barrier to the movement of water. Symplast: In symplast the movement of water occurs from one cell to another cell through the plasmodesmata.
Which of the following is the correct sequence of water movement when enter the epidermal cells?
a) cortex, endodermis, pericycle and finally xylem cells
b) endodermis, pericycle, cortex and finally xylem cells
c) endodermis, cortex, pericycle and finally xylem cells
d) cortex, pericycle, endodermis and finally xylem cells
