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प्रश्न
Explain why:
Raisins swell up in water.
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उत्तर
The raisins swell up when placed in water because the water is hypotonic as compared to the raisins so the water enters inside the raisins as a result of endosmosis.
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संबंधित प्रश्न
Draw a magnified view of the root-hair, and describe, how it helps in the absorption of water from the soil.
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
Xylem is the water conducting tissue in plants.
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
The cell wall of the root cell is a differentially permeable membrane.
Study the diagram given below and answer the questions that follow:
- Name the process being studied in the above experiment.
- Explain the process mentioned in (a) above
- Why is oil placed over water?
- What do we observe with regard to the level of water when this set-up is placed in (1) bright sunlight, (2) humid conditions and (3) windy days?
- Mention any three adaptations found in plants to foster the process mentioned in (a) above
What part is played by The cytoplasm in the uptake of water into the root hair?
Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.
If the phloem of a twig is removed keeping the xylem intact, the leaves of a twig wilt.
Draw a neat and labelled diagram of the Root tip showing the root hair zone.
How many regions are there in a typical root?
Explain about the factors that affect water absorption.
