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Given figure represents L.S. of phloemm ...

Given figure represents L.S. of phloemm tissue. In which labelled structures A,B,C& D respectively

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The correct Answer is:
A-Sieve pore
B-Sieve tube element
C- Phloem parenchyma
D- Companion cells
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ALLEN-ANATONY OF FLOWERING PLANTS -Exercise
  1. Which xylem element have highly thickened walls and obliterated centra...

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  2. Which xylem element store food material in the form of starch or fats ...

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  3. Given figure represents L.S. of phloemm tissue. In which labelled stru...

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  4. Plant group in which phloem is composed of sieve tube elements, compan...

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  5. Spermatophytes in which phloem have albuminous cells and sieve cells

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  6. Phloem elements which are long, tube-like structures, arranged longitu...

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  7. A mature sieve element possesses a peripheral cytoplasm and a large (A...

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  8. The functions of (A) are controlled by the (B) of companion cells.

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  9. Match the column-I with Column-II

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  10. The protophloem has (A) sieve tubes whereas metaphloem has (B) sieve t...

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  11. On the basis of their A and B there are three types o tissue systems.

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  12. Phloem fibre are made up of (A)cells. These are generally absent in th...

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  13. Epidermal cell are (A) withh a small amount of (B) and large vacuole.

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  14. In dlicots, guard cells are (A) shaped whereas in grasses guard cells ...

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  15. The stomatal aperture, guard cells and the surrounding subsidiary cell...

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  16. The root hairs are (A) elongations of the (B) cells and help absorb wa...

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  17. All tissues except (A) and (B) constitute the ground tissue system.

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  18. In leaves, the ground tissue constitute of this walled parenchymatous ...

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  19. Given figure represent which type of vascular bundle?

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  20. Given figure represents which type of vascular bundle?

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