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प्रश्न
What happens when a pressure greater than the atmospheric pressure is applied to pure water or a solution?
उत्तर १
The water potential of pure water or a solution increases on the application of pressure values more than atmospheric pressure. For example: when water diffuses into a plant cell, it causes pressure to build up against the cell wall. This makes the cell wall turgid. This pressure is termed as pressure potential and has a positive value.
उत्तर २
If a pressure greater than atmospheric pressure is applied to pure water or a solution, its water potential increases. It is equivalent to pumping water from one place to another. Pressure can build up in a plant system when water enters a plant cell due to diffusion causing a pressure built up against the cell wall, it makes the cell turgid.
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संबंधित प्रश्न
Explain why pure water has the maximum water potential.
Briefly describe water potential. What are the factors affecting it?
Explain what will happen to a plant cell if it is kept in a solution having higher water potential
Identify the INCORRECT statement.
Water absorption takes place through ______
The relation between water potential, solute potential and pressure potential is
Contribution of passive water absorption to total water absorption is ______.
Define water potential and solute potential.
Why is solute potential always negative? Explain yw = ys + yp
Sugar crystals do not dissolve easily in ice cold water. Explain.
Observe the figure and answer the question provided below the figure.
Why does tube B show higher water rise than A?
Halophytes may show cell pressure very much higher than atmospheric pressure. Explain how this can happen?
Identify the INCORRECT statement.
Water always flows from______.
Cell A has water potential - 10 bars and cell B has - 5 bars, the movement of water will occur from______.
Give the precursor, chemical composition and any two applications of Gibberelins.
Explain factors affecting water absorption.
