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प्रश्न
Osmosis takes place when there is ______.
पर्याय
A freely permeable membrane
A cell wall
A selectively permeable membrane
An impermeable membrane
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उत्तर
Osmosis takes place when there is a selectively permeable membrane.
Explanation:
On a semipermeable membrane, osmosis is the flow of solvent molecules along a concentration gradient. Solute molecules cannot pass over this membrane.
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संबंधित प्रश्न
Multiple Choice Question:
Put a tick mark (✓) against the correct alternative in the following statement:
Raisins swell when put in:
State whether the following statement is true or false. Rewrite the false statement correctly.
Water enters the root-hair by osmosis.
Osmosis occurs through a _________ membrane.
Movement of water occurs from a _______ solution into a _________ solution in osmosis.
Why do raisins (dried grapes) swell when kept soaked in water?
The pressure by which the ______ molecules tend to cross the semi-permeable membrane is called osmotic pressure.
Study the experimental setup in the figure and then answer the questions that follow.
- What phenomenon is being studied by this setup?
- Explain the phenomenon mentioned in (a) above.
- What is meant by 'semipermeable membrane'?
- What will you observe in the set-up after about half an hour? Give a reason for your answer.
In order to avoid water loss, sharks make their blood ______ to surrounding marine water.
A membrane that allows the passage of solvent molecules but not the passage of solute molecules is called ____________ membrane.
Following are a few definitions of osmosis Read carefully and select the correct definition
