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The chief water conducting elements of xylem in gymnosperms are
A
Tracheids
B
Vessels
C
Fibers
D
Transfusion tissue
Detailed Solution
Xylem has two kinds of water-conducting (tracheary) elements: tracheids and vessels.
Tracheids are elongated, tube-like dead cells with thick lignified walls and tapering ends.
Vessels are long tubes made of many vessel members; their presence is a characteristic feature of angiosperms.
Gymnosperms lack vessels in their xylem (NCERT), so water is conducted mainly by tracheids.
Xylem fibres are only mechanical in function.
Hence the chief water-conducting elements in gymnosperms are tracheids.
Tracheids are elongated, tube-like dead cells with thick lignified walls and tapering ends.
Vessels are long tubes made of many vessel members; their presence is a characteristic feature of angiosperms.
Gymnosperms lack vessels in their xylem (NCERT), so water is conducted mainly by tracheids.
Xylem fibres are only mechanical in function.
Hence the chief water-conducting elements in gymnosperms are tracheids.