Multiple choice

A cylindrical tube like structure made up of dead cells with lignified cell walls in the xylem tissue are known as

  1. tracheids

  2. vessels

  3. xylem parenchyma

  4. xylem fibers

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vessels are advanced water-conducting elements in the xylem, primarily found in angiosperms. They are formed by a vertical column of dead cells with lignified walls where the end walls have dissolved, creating a continuous cylindrical tube. This structure allows for more efficient water transport compared to tracheids.