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Transport in Plants

Short Answer Type

21. What is the value of water potential to fully turgid cell and why ?

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22. Define the terms imbibition imbibant, imbibate and imbibition pressure.

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23. Describe the importance of imbibition.

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Long Answer Type

24. What are the factors affecting the rate of diffusion?

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25. Describe the significance of diffusion.

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Short Answer Type

26. Define osmosis. Give its types.

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Long Answer Type

27. What is the significance of osmosis ?

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Short Answer Type

28. Define the term diffusion pressure deficit (DPD) and also write its relation.

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29. Define the terms osmotic pressure and turgor pressure.

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30. Write note on solute potential.

Solute potential or Ψs: It is the reduction in water potential of a solution due to the dissolution of solute. It is always negative. as the presence of solute lowers the water potential of a solution as compared to pure water. For a solution at atmospheric pressure (water potential)
Ψw = (solute potential) Ψs.

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