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प्रश्न
Define the following:
Diffusion
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उत्तर
Diffusion - It is the movement of molecules or ions from a region of higher concentration to a region of lower concentration to equalize the concentration of the two regions.
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संबंधित प्रश्न
Give appropriate biological or technical terms for the following :
Movement of molecules of a substance from their higher concentration to lower concentration when they are in direct contact.
The most appropriate characteristic of a semipermeable membrane is that
The bending movements of certain flowers towards the sun and the sleep movements of certain plants at night are examples of ______.
Differentiate between the following:
Plasmolysis and deplasmolysis
Distinguish between the following:
Filtration and diffusion
Name the following:
The inward movement of solvent molecules through the plasma membrane of the cell.
Give Reasons for the following.
Freshwater fish cannot survive in seawater.
The beaker is divided into two chambers A and B. The big circle represents solute and the small circles solvent.
(i) What can you say about the size of the holes in the membrane, if it is to behave semi- permeably between these two?
(ii) Will the solvent molecules pass through the membrane from left to right, from right to left, in either direction or in both directions?
(iii) In which direction will there be a net movement of solvent molecules?
Give Technical Term for the following.
The pressure which is responsible for the movement of water molecules across the cortical cells of the root.
Explain the term:
Diffusion
