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प्रश्न
Differentiate between the following
Turgor pressure and Root pressure
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उत्तर
| Turgor Pressure | Root Pressure |
| t is the pressure of the cell. Contents of a turgid cell on its cell wall. | It is the pressure under which water passes from the living cells into the xylem of root. |
| It is caused when a cell becomes turgid. | It is caused due to alternate turgidity and flaccidity of root cells. |
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संबंधित प्रश्न
Explain Turgor pressure
The state of a cell in which the cell wall is rigid and stretched by the increase in volume due to the absorption of water is called.
Differentiate between the following:
Turgor pressure and wall pressure
Mention whether the following statement is true or false Correct the false statement by altering the last word only.
Cells that have lost their water content are said to be deplasmolysed.
Give reason for the following:
A plant cell, when kept in a hypertonic salt solution for about 30 minutes, turns flaccid.
Give Technical Term for the following.
A cell in a fully extended condition.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Flaccidity is the reverse of turgidity.
Excessive use of fertilisers in agricultural fields reduces the yield of crops. Justify the statement.
Addition of salt to pickles is a method of killing the bacteria by ______.
The figure given below is a diagrammatic representation of a part of the cross-section of the root in the root hair zone. Study the same and then answer the questions that follow:
- The parts labelled as 1, 2, 3 and 4 are:
- Root hair, Xylem vessel, Soil particles, Cortex respectively.
- Xylem vessel, Soil particles, Root hair, Cortex respectively.
- Root hair, Xylem vessel, Cortex, Soil particles respectively.
- Cortex, Soil particles, Xylem vessel, Root hair respectively.
- The process that enables the passage of water from soil into the root hair is:
- Diffusion
- Active transport
- Osmosis
- Passive absorption
- The kind of force which exists between a liquid and any surface is called as:
- Cohesive force
- Adhesive force
- Capillarity
- Suction force
- The kind of force between the same kind of liquid molecules is:
- Capillary force
- Transpirational pull
- Adhesive force
- Cohesive force
- Sometimes exudation of water occurs from the margin of the leaves in the early morning or night. It is termed as:
- Transpiration
- Guttation
- Bleeding
- Osmosis
