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Tracheids differ from other tracheary elements inA. having casparian stripsB. being imperforateC. lacking nucleusD. being lignified

Answer» Correct Answer - b
Tracheids and vessels both are called tracheary elements because their main function is conduction of sap . Tracheids differ from other trachaery elements in being imperforate . Tracheids are the specific cells which have pits to support upwards and lateral conduction of water sap.
Tracheid are comparatively short and single cell, while vessels have more than one cell and up to 10 cm long.


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