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Keep some freshly cut flowers in a solut...

Keep some freshly cut flowers in a solution of food colour. Wait for sometime for the days to rise in the flower, when the stem, of the flower is held up in light, coloured strands can be seen inside. Can this experiment demonstrate which tissue is conducting water up the stem ?

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This experiment shows that water is transported by stem xylem tissue.
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To show vegetative propagation by stem cuttings. Materials : Money-plant (pothos) Procedure: rarr Select a money-plant. Cut some pieces which contain at least one node of leaf. rarr Cut out some other portions between two leaves. rarr Dip one end of all the pieces in water. rarr Observe over the next few days. Can you give some other example to show vegetative propagation by stem cuttings ?

KUMAR PRAKASHAN-TRANSPORT IN PLANTS -Section-E NCERT Exemplar (Short Answer)
  1. Water is indispensable for life. What properties of water make it usef...

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  2. How is it that the intracellular levels of K^+ are higher than extrace...

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  3. Cut pieces of beetroot do not leave the colour in cold water but do so...

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  4. In a girdled plant, when water is supplied to the leaves above the gir...

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  5. Various types of transport mechanisms are needed to fulfil the mineral...

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  6. How can plants be grown under limited water supply without compromisin...

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  7. Will the ascent of sap be possible without the cohesion and adhesion o...

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  8. Keep some freshly cut flowers in a solution of food colour. Wait for s...

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  9. When a freshly collected spirogyra filament is kept in a 10% potassium...

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  10. Sugar crystals do not dissolve easily in ice cold water. Explain.

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  11. Salt is applied to tennis lawns to kill weeds. How does salting tennis...

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  12. What is the chemical composition of xylem and phloem sap ?

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  13. If you are provided with two tubes (A and B), where one is narrow and ...

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  14. What are 'aquaporins' ? How does presence of aquaporins affect osmosis...

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  15. ABA (Abscisic Acid) is called a stress hormone. (a) How does this ...

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  16. We know that plants are harmed by excess water. But plants survive und...

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  17. How is facilitated diffusion different from diffusion ?

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  18. Explain pressure flow hypothesis of translocation of sugar in plants.

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  19. Observe the diagram and answer the following. (a) Are these type...

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  20. Define : Uniport .

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