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The function of companion cells is to...

The function of companion cells is to

A

Providing energy to sieve elements for active transport

B

Loading of sucrose into sieve elements by passive transport

C

Providing water to phloem

D

Loading of sucrose into sieve tube elements by active transport

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The correct Answer is:
D
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AAKASH SERIES-HISTOLOGY AND ANATOMY OF FLOWERING PLANTS-EXERCISE - III (PREVIOUS AIPMT/NEET QUESTIONS)
  1. The function of companion cells is to

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  2. Cortex is the region found between

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  3. The ballone-shaped structures called tyloses

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  4. Specialised epidermal cells surrounding the guard cell are called

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  5. A major characteristic of the monocot root is the presence of :

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  6. Vascular bundles in monocotyledons are considered closed because

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  7. Read the different components from (A) to (D) in the list given below ...

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  8. Tracheids differ from other tracheary elements in :

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  9. Lenticels are involved in

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  10. lnterfascicular cambium develops from the cells of

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  11. Companion cells are closely associated with

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  12. Closed vascular bundles lack

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  13. Water contaning cavities in vascular bundles are found in

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  14. As compared to a dicot, root, a monocot root has

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  15. Ground tissues includes

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  16. The cork cambium , cork and secondary cortex are collectively called

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  17. Function of companion cells is

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  18. Some vascular bundles are dsecribed as open because theses

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  19. Anatomically fairly old dicotyledonous root is distinguished formt eh ...

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  20. The annular and spirally thickened conducting elements generally devel...

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  21. Palisade parenchyma is absent in leaves of:

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