Anatomy Of Flowering Plants Question 8
Question: From where the commercial jute fibres are obtained?
Options:
A) Interxylary fibres
B) Xylem fibres
C) Phloem fibres
D) None of these
Show Answer
Answer:
Correct Answer: C
Solution:
Fibres are grouped into xylary fibres and extraxylary fibres. Xylary fibres, also called wood fibres are parts of xylem and are longest among xylem elements.
Extra xylary fibres are classified as phloem fibres, cortical fibres and perivascular fibres.
These are lignified or non-lignified.
On account of their elasticity, fibres enable the plant body to withstand various strains.
Commercial fibres like jute, flax, ramie are extra xylary fibres. Thus, the correct answer is option C.
BETA
