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प्रश्न
Give Reasons for the following.
Freshwater fish cannot survive in seawater.
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उत्तर
The seawater is saline (having more concentration of salts) and acts as a hypertonic solution for the freshwater. So freshwater fish cannot survive in seawater as it causes the plasmolysis of the cells of the fish and ultimately the fish will die.
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संबंधित प्रश्न
Complete the following statements:
Hypotonic solution is one in which the solution kept outside the cell has lower solute concentration than ……………… the cell.
Show by a series of diagrams, the change which a plant cell will undergo when placed in
Hypertonic salt solution
Define the term:
Plasmolysis
Name the following:
Movement of molecules from a region of high concentration to a region of low concentration.
Explain why:
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
What is the significance of diffusion?
Give Reasons for the following.
On sprinkling common salt on grass growing in a lawn, the grass is killed.
Multiple Choice Question:
Marine fish when thrown under tap water bursts because of:
Explain the term:
Diffusion
Explain the Term: Endosmosis
