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Which ones show physiological process ca...

Which ones show physiological process called "necessary evil" (a) Potomogeton (b) Sagitteria (c) Limnophila (d) Nymphaea

A

b,c,d

B

a,b,c

C

a,b,d,

D

a,c,d

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The correct Answer is:
A
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DINESH PUBLICATION-TRANSPORT IN PLANTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS
  1. Root pressure is maximum when

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  2. Guard cell regulate

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  3. Which ones show physiological process called "necessary evil" (a) Poto...

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  4. Water potential in closely placed cell (p,q,r) is given below . Find o...

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  5. Ionic flux of guard cells directly connected with expenditure of energ...

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  6. Which ones regulate stomatal movements (a) IAA (b) GA(3) Zeatin (D) AB...

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  7. Thin and elastic walls of guard cells are

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  8. Colligative property is 1.Osmotic pressure 2. Vapour pressure 3.Cohes...

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  9. Water column does not repture during ascent in tracheary elemants due...

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  10. Stomata open when guard cells swell due to

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  11. Transpiration facilitates

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  12. An RBC and a plant cell having same O.P. are placed in distilled water...

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  13. Which of the following would be in insignificant amount in xylem sap

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  14. Which pathway involves cell wall and intercellular spaces?

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  15. Efflux of K^(+) and Cl'will cause

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  16. Water potential increases due to

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  17. Most of the water flow in the root takes place via the apoplast becaus...

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  18. For the same amount CO(2) fixed s C(4) plant, in comparison with a C(3...

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  19. In the cell walls of the guard cells, cellulose microfibrils are orien...

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  20. Grahm's law is connected with

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