Anatomy Of Flowering Plants Question 76
Question: Xylem fibre is:
Options:
A) Bast fibre
B) Wood fibre
C) Heart wood
D) Libriform fibre
Show Answer
Answer:
Correct Answer: B
Solution:
The parts of the xylem are the xylem vessels, xylem fibers, tracheid and the xylem parenchyma.
Xylem fibers are the thick lignified fibers that are made up of the dead sclerenchyma cells. These are located between the xylem vessels and the tracheids of the xylem in a plant.
They are hard tissues and are woody in nature.
These sclerenchyma cells lack the protoplast in their cells at the time of maturity.
Thus, it provides mechanical support to the xylem vessels for the transport of water and other nutrients and also offers strength to the whole plant.
These xylem fibers are also called wood fibers.
These fibers have a high elasticity and good tensile strength, and this property makes them strong
Hence the correct answer is OPTION(B)
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