1)Vessel members are interconnected through perforation in their common walls 2)xylem fibres have obliterated Central lumens which may be septate - Biology - Anatomy of Flowering Plants

Question

1)Vessel members are interconnected through perforation in their
common walls 2)xylem fibres have obliterated Central lumens which
may be septate or aseptate explain these two lines with respect to
page 87 NCERT anatomy of flowering plants

Anchit Kumari · Accepted Answer

only 
vessel elements 
have openings at both ends that connect individual

vessel 
elementsto

form a continuous tubular 
vessel 
These end openings are called 
perforations 
or 
perforation 
plates
Dear Student,

1 Vessel members are
interconnected through perforation in their common walls
Vessels are long, cylindrical tube-like structures made up of
lignin These consists of various cells called vessel elements or
members These vessel elements have openings at the both ends so
that the individual vessel elements become connected These end
openings are known as perforations or perforation plates These
plates allows the vessel elements to form continuous tubular
structure

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1)Vessel members are interconnected through perforation in their common walls 2)xylem fibres have obliterated Central lumens which may be septate or aseptate.... explain these two lines with respect to page 87 NCERT anatomy of flowering plants