Advertisements
Advertisements
प्रश्न
Give reason for the following:
It is better to transplant seedlings in a flower-bed in the evening and not in the morning.
Advertisements
उत्तर
Transplantation causes stress on the seedlings. If the seedlings are transplanted in the morning, they would have to immediately bear the additional stress of excessive transpiration occurring during the hot afternoon. Transplantation in the evening helps the seedlings adjust for a longer time during the night (cooler temperatures) because the quantity of water absorbed exceeds the loss of water through transpiration. Therefore, it is better to transplant seedlings in a flower bed in the evening and not in the morning.
संबंधित प्रश्न
Give the equivalent term for the following:
The condition in which the cell contents are shrunken.
Differentiate between the following:
Turgidity and Flaccidity
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.
What is the difference between ‘flaccid’ and ‘turgid’? Give one example of flaccid condition in plants.
Differentiate between:
Turgid and Flaccid.
Differentiate between the following
Turgor pressure and Root pressure
The below diagram represents a plant cell after being placed in a strong sugar solution. Guidelines 1 to 5 indicate the following:
1. Cell wall
2. Plasma membrane.
3. Protoplasm
4. Large vacuole
5. Nucleus
Study the diagram and answer the questions that follow :
(i) What is the state of the cell shown in the diagram?
(ii) Name the structure which acts as a selectively permeable membrane.
(iii) If the cell had been placed in distilled water instead of a strong sugar solution which features: would not have been present?
(iv) If the cell in the diagram possessed chloroplasts where would these be present?
(v) Name any one feature of this plant cell which is not present in animal cells.
Name the following:
The process by which wilting or drooping of leaves occurs.
Multiple Choice Question:
When cell is fully turgid, which of the following will be zero?
Deplasmolysis occurs when a plasmolysed cell is placed in ______.
