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When an oak tree is kept in a poisonous ...

When an oak tree is kept in a poisonous solution, that rises to the top of the tree, even then the tree is ready to take another supply of poisonous solution followed by uptake of even pure water. This shows that

A

Living cells are not involved in ascent of sap

B

Living cells play a major role in ascent of sap

C

Both xylem and phloem play a major role in ascent of sap

D

Living cells play 60% role and vessels of xylem play 40% role in ascent of sap

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A
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AAKASH SERIES-TRANSPORT IN PLANTS -EXERCISE II
  1. The cohesive force of water is due to :

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  2. A higher plant-cell, impregnated with cutin and suberin is placed in w...

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  3. Conduction of sap in plants occurs through:

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  4. The blockage of one or two tracheary elements in a tree may cause

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  5. This plant is ideal to demonstrate ascent of sap

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  6. The term ‘tensile strength’ represents that there is

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  7. In a branch cut from a rapidly transpiring plant, water snaps away fro...

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  8. When an oak tree is kept in a poisonous solution, that rises to the to...

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  9. Who among the following scientists first gave the starch sugar interco...

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  10. Transpiration is measured by

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  11. Which of the following chemical serves as an antitranspirant in plants...

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  12. Which of the following theory gives the latest explanation for the ope...

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  13. Which one of following is not an antitranspirant?

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  14. Which one of the following will not directly effect transpiration?

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  15. Ringing (girdling) experiment cannot be performed in

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  16. A girdled tree (upto bast) may survive for some time but it will event...

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  17. How does the removal of a ring of bark and wood from the trunk of a tr...

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  18. When stem of plant is girdled (ringed) :

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  19. Ringing (girdling) experiment cannot be performed in

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  20. The protoplasmic streaming hypothesis for food translocation has not b...

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