Formula for Water Potential
Trending Questions
Q. Why hygroscopic water is not available to plants?
- Because its Ψw is greatly increased
- Because its DPD is greatly decreased
- Because its Ψw becomes strongly negative
- Because its Ψw is increased and DPD is decreased
Q. Explain why pure water has the maximum water potential.
Q. Assertion :Leucosolenia shows ascon type of canal system Reason: In Leucosolenia water passes through ostia→ spongocoel → osculum.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Q. Briefly describe water potential. What are the factors affecting it?
Q. If you ignore the factors which are negligible and universal, which are the main components that determine water potential?
- Pressure potential
- Gravity potential
- Matrix potential
- Solute potential
Q.
Study the following table showing the components of water potential of four cells of an actively transpiring plant.
CellSolute potentialPressure potential(MPa)(MPa)A−0.680.42B−0.750.36C−0.830.47D−0.570.29
Identify the four cells as root hair, cortical cell, endodermal cell (lacking casparian strips) and pericycle cell respectively in the young root (assuming symplastic water flow through them).
B, D, C, A
D, A, C, B
A, D, C, B
A, C, B, D