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प्रश्न
What is the significance of diffusion?
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उत्तर
Significance of Diffusion
(i) It helps in the exchange of respiratory gases.
(ii) It helps in the transport of food molecules without the plant body.
संबंधित प्रश्न
Give Reasons for the following.
On sprinkling common salt on grass growing in a lawn, the grass is killed.
Give Reasons for the following.
Freshwater fish cannot survive in seawater.
Give Reasons for the following.
Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered. Why?
Give Reasons for the following.
Plants begin to die when the excess of soluble fertilizers are added to the soil?
Given below is the figure of an experimental set up to demonstrate root pressure.
(i) Define root pressure.
(ii) What change would you observe in the water level after some time?
(iii) What role is being played by the root pressure in the given experiment?
(iv) Why the oil has been sprinkled on water?
Name the following:
Name the process by which water enters the root hair cell.
Name the following:
Condition of cell in which the cell content are shrunken.
Fill in the Blank
The pressure which develops in the cortical cells of root which force a part of the water upward ____________.
Fill in the Blank
A plasmolysed cell has __________ protoplast.
Fill in the Blank
Raisin swells up when kept in a __________ solution.
