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प्रश्न
Give Reasons for the following.
Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered. Why?
उत्तर
The concentration of water molecules being less outside, endosmosis takes place resulting in the wilting of the plants.
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संबंधित प्रश्न
Distinguish between the following:
Hypotonic and Hypertonic solutions
Name the following:
The pressure with which the molecules of a substance diffuse.
Name the following:
Condition of cell in which the cell contents are shrunken.
Name the following:
The process by which raisins swell up when placed in a beaker of water.
Choose the correct answer:
Grapes when placed in a strong sugar solution shrink because of __________
Two potato cubes each 1 cm3 in size, were placed separately in two containers (A and B), the container A having water and the other (B) containing concentrated sugar solution. After 24 hours when the cubes were examined, those placed in water were found to be firm and had increased slightly in size and those placed in concentrated sugar solution were found to be soft and somewhat decreased in size. Use the above information to answer the questions that follow:
Account for the softness and decrease in size of the potato cubes which were placed in sugar solution.
Give Reasons for the following.
Salt and sugar are used in preserving food.
Name the following:
The pressure through which water can rise upto some feet.
Fill in the Blank
When there is no movement of water in the cell from the outside medium, the medium is considered to be ______ to cell sap.
Fill in the Blank
Raisin swells up when kept in a __________ solution.
