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प्रश्न
Name the following:
The process by which wilting or drooping of leaves occurs.
उत्तर
Turgidity
APPEARS IN
संबंधित प्रश्न
Give scientific reasons : Balsam plants wilt during mid-day even if the soil is well watered.
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.
Give the equivalent terms for the following:
Loss of water through a cut stem.
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.
The pressure exerted by cell contents on a plant cell wall.
Name the following:
The condition in which the contents of a cell exert pressure against the cell wall making it distended.
Fill in the Blank
Wilting and drooping of leaves is due to loss of ________.
Multiple Choice Question:
When cell is fully turgid, which of the following will be zero?
When the cells of a plant are fully distended, the condition is called ______.
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
