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Transpiration is a necessary evil in pla...

Transpiration is a necessary evil in plants. Explain

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Transpiration a Necessary Evil
The plant continuously lose water in the vapour from its body surfaces. If creates a transpiration pull to absorb more and more water from soil through roots.
If the plant does not get water in soil, even then loss through transpiration is not stopped, so plant shows wilting sometimes it leads to the physiological wilting (non0recoverable) and plant dies. So, the transpiration is necessary evil.
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NCERT EXEMPLAR-TRANSPORT IN PLANTS-Very Short Answer Type Questions
  1. A flowering plant is planted in an earthen pot and irrigated. Urea is ...

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  2. Absorption of water from soil by seeds increases the "" thus helping s...

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  3. Water moves up against gravity and even for a tree of 20mheight the ti...

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  4. The plant cell cytoplasm is surrounded by both cell wall and cell memb...

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  5. The C(4) plants are twice as efficient as C(3) plants in terms of fixi...

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  6. Movement of substances in xylem is unidirection while in phloem it is ...

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  7. Indentify the process occurring in I, II, and III

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  8. Given below is a table. Fill in the gaps.

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  9. Define water potential and solute potential.

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  10. Why is solute potential always negative ? Explain Psi(w)=Psi(s)+Psi(p)...

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  11. An onion peel was taken and (a) placed in salt solution for five min...

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  12. Differentiate apoplast and symplast pathways of water movement. Which ...

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  13. How does most of the water moves within the root ?

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  14. Give the location of casparian strip and explain its role in the water...

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  15. Differentiate between guttation and transpiration.

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  16. Transpiration is a necessary evil in plants. Explain

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  17. Describe briefly the three physical properties of water which helps in...

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  18. A gardener forgot to water a potted plant for a day during summer, wha...

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  19. Identify a type of molecular movement which is highly selective and re...

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  20. Correct the statements. (a) Cells shrink in hypotonic solutions and ...

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