NEET 2014 Biology question

Tracheids differ from other tracheary elements in :

(1)Having casparian strips
(2)Being imperforateCorrect
(3)Lacking nucleus
(4)Being lignified

Answer: (2)

Solution

Tracheary elements are the conducting cells of xylem: tracheids and vessel members. Tracheids are elongated cells with tapering ends whose walls have no perforations (imperforate; water passes through pits), whereas vessel members are

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Question ID VK-091575