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Question
What is the difference between ‘flaccid’ and ‘turgid’? Give one example of flaccid condition in plants.
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Solution
The cell is said to be turgid when the plant cell wall becomes rigid and stretched by an increase in the volume of vacuoles due to the absorption of water when placed in hypotonic solution. On the other hand, the cell is said to be flaccid when the cell contents get shrunken when the cell is placed in hypertonic solution and the cell is no more tight. Flaccidity is the reverse of turgidity. Example: Weeds can be killed in a playground by sprinkling excessive salts around their base.
Or
A plant cell when immersed in hypertonic solution like salt solution for about 30 minutes will become flaccid or limp.
RELATED QUESTIONS
Differentiate between:
Turgid and Flaccid.
Differentiate between the following:
Plasmolysis and Deplasmolysis.
Fill in the Blank
The condition opposite to turgid is ___________.
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?
Excessive use of fertilisers in agricultural fields reduces the yield of crops. Justify the statement.
The hydrostatic pressure of the cell sap on the cell wall is called ______.
Addition of salt to pickles is a method of killing the bacteria by ______.
Give the equivalent term for the following:
Pressure exerted by the cell contents on the cell wall.
Given below is the figure of a plant cell showing different kinds of pressure acting upon it. Study the figure and answer the questions that follow:
- In the figure, 1, 2 and 3 represent:
- Cytoplasm, Nucleus, Vacuole respectively
- Vacuole, Cytoplasm, Cell wall respectively.
- Cytoplasm, Cell membrane and vacuole respectively.
- Cytoplasm, Cell wall and Vacuole respectively.
- B in the figure represents:
- Osmotic pressure
- Turgor pressure
- Wall pressure
- Diffusion pressure
- A in the figure represents:
- irnbibition pressure
- Wall pressure
- Turgor pressure
- Osmotic pressure
- C in the figure represents:
- Turgor pressure
- Osmotic pressure
- Wall pressure
- Imbibition pressure
- Draw a neat and labelled diagram of a plasmolyzed plant cell.
