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प्रश्न
Give Reasons for the following.
It is necessary to maintain a normal osmotic concentration of the blood.
उत्तर
Osmotic pressure is maintained in blood to prevent dehydration leading to shrinkage of cells.
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संबंधित प्रश्न
Differentiate between the following:
Plasmolysis and deplasmolysis
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
The shrinkage of protoplasm, when a cell is kept in hypotonic solution.
The following diagram represents a plant cell after being placed in a strong sugar solution.
Guidelines 1 to 5 indicate the following
(1)Cell wall, (2) Strong sugar solution, (3) Protoplasm (4) Large vacuole, (5) Nucleus
(1)What is the state of the cell shown in the cell shown in the diagram?
(2)Name the structure which acts as a selectively permeable membrane.
(3)If the cell had been placed in distilled water instead of strong sugar solution, which feature would not have been seen?
(4)Name any one feature of this plant cell which is not present in an animal cell.
Define the following:
Osmosis
Name the following:
The process by which raisins swell up when placed in a beaker of water.
Explain why:
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
Choose the correct answer:
Grapes when placed in a strong sugar solution shrink because of __________
What is the water potential?
Give Reasons for the following.
The raisins swell up in the water.
Give Technical Term for the following.
The pressure which is responsible for the movement of water molecules across the cortical cells of the root.
