Q. 25.0( 1 Vote )
Which part of plants is timber?
A. Primary phloem
B. Secondary phloem
C. Primary xylem
D. Secondary xylem
Answer :
Secondary xylem consists of larger-sized vessels and tracheas'. The cell walls of a secondary xylem are normally thickened by lignin deposition, which provides excellent mechanical support to the plant. This thicken deposition is wood of the plant which is used for making tinder. Hence that is why secondary xylem is the correct answer.
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