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The presence of vessels in xylem is char...

The presence of vessels in xylem is characteritics feature of (A)_____

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To solve the question regarding the presence of vessels in xylem, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Xylem**: Start by recognizing that xylem is a type of vascular tissue in plants responsible for the conduction of water and minerals from the roots to the rest of the plant. 2. **Identifying Components of Xylem**: Xylem is composed of several types of cells, including tracheids, vessels, fibers, and parenchyma. Among these, vessels are specialized structures. 3. **Characteristics of Vessels**: Vessels are elongated, tube-like structures that have thick walls reinforced with lignin. This lignin provides strength and support to the plant. 4. **Function of Vessels**: The primary function of vessels is to conduct water and dissolved minerals efficiently. They facilitate one-way movement of water from the roots to the leaves. 5. **Presence of End Walls**: A key characteristic of vessels is that they lack end walls between adjacent cells, allowing for a continuous flow of water. 6. **Distribution of Vessels**: Vessels are predominantly found in angiosperms (flowering plants). While some gymnosperms and pteridophytes may have vessels, they are not as common. 7. **Conclusion**: Based on the above points, we conclude that the presence of vessels in xylem is a characteristic feature of angiosperms. ### Final Answer: The presence of vessels in xylem is a characteristic feature of **(A) Angiosperms**. ---
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ALLEN-ANATONY OF FLOWERING PLANTS -Exercise
  1. Permanent tissues which are made up of more than one type of cells and...

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  2. Tracheids are elongated cells with thick and (A) walls and (B) ends.

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  3. The presence of vessels in xylem is characteritics feature of (A)

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  4. Which xylem element have highly thickened walls and obliterated centra...

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

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

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

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

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

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

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

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  12. Match the column-I with Column-II

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

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

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

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

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

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

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

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

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