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

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Xylem sap consists of mainly water and some solutes or mineral nutrients.
Phloem sap mainly consists of the sucrose, a kind of transport sugar which is a diasaccharide, hormones and amino acids are also found in phloem sap of the plants
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NCERT EXEMPLAR-TRANSPORT IN PLANTS-Short Answer Type Questions
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  6. Will the ascent of sap be possible without the cohesion and adhesion o...

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

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

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

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  14. ABA (Abscisic Acid) is called a stress hormone. A. How this hormone ...

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

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  16. Differentiate between diffusion and translocation in plants.

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  17. How is fcilitated diffusion different from diffusion ?

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  18. Explain the mass flow hypothesis of transport in phloem.

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

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  20. Define uniport, symport and antiport. Do they require energy ?

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