Question

Fibres associated with phloem are called :

• A. Intraxillary
• B. Sclerenchyma fibres
• C. Bast fibres
• D. Cortical fibres

Answer 1

The correct option is C

Bast fibres

The correct option is C:

Explanation of the correct option:

1. The fibres that are associated with phloem are bast fibres.
2. Bast fibres are also known as skin fibres and are mainly seen in dicotyledonous plants.
3. Bast fibres have lignified walls with pits that provide mechanical support and strength to the plant.

Explanation of the incorrect option:

Option A:

Intraxillary fibres appear as secondary meristems.

Option B:

Sclerenchyma fibres are composed of cells that are thick-walled with little or no protoplasm.

Option D:

Cortical fibres are present in the secondary cortex.

Final answer: The fibres associated with phloem are called bast fibres.