Multiple choice

The elongated tube like dead cells that enclose large empty cavity and have tapering ends are known as

  1. tracheids

  2. vessels

  3. xylem parenchyma

  4. xylem fibers
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A Correct answer
Explanation

Tracheids are elongated, spindle-shaped cells found in the xylem of all vascular plants. They are dead at maturity, have lignified walls, and possess tapering ends that overlap with other tracheids. Unlike vessels, they do not have completely open ends but transport water through pits in their walls.

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