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- #Structural Organisation in Animals and Plants
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Tracheids differ from other tracheray elements in :
- Option 1)
Having casparian strips
- Option 2)
Being imperforate
- Option 3)
Lacking nucleus
- Option 4)
Being lignified
Answers (1)
Tracheids -
These are primitive conducting elements of xylem, unicellular and have narrow lumen. Transverse septum lies between each two tracheids and water moves from one tracheid to another though pits, which are unlignified area on lignified wall.
- wherein
Tracheids of pteridophytes have long or elongated bordered pits, called as scalariform pits.
Tracheids allow movement of waters through pits. Hence are imperforated
Option 1)
Having casparian strips
Incorrect
Option 2)
Being imperforate
Correct
Option 3)
Lacking nucleus
Incorrect
Option 4)
Being lignified
Incorrect
View full answer
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