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प्रश्न
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The plasma membrane permits the passage of all solutes and water.
पर्याय
True
False
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उत्तर
False
Correct Statement: It permits the passage of certain substances.
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संबंधित प्रश्न
Differentiate between Diffusion and Osmosis (Definition)
Leaves of the sensitive plant wilt and droop down on a slight touch. What mechanism brings about this change?
Two potato cubes each 1 cm3 in size, were placed separately in two containers (A&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 had somewhat decreased in size. Use the above information to answer the questions that follow:
Account for the firmness and increase in the size of the potato cubes placed in water.
Give Reasons for the following.
On sprinkling common salt on grass growing in a lawn, the grass is killed.
Fill in the Blanks
Diffusion is the movement of molecules from a region of their ________ concentration to the region of their ________ concentration.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Cells that have lost their water content are said to be deplasmolysed.
Multiple Choice Question:
Marine fish when thrown under tap water bursts because of:
Define the following term:
Tonicity
