Question

The commercial jute fibres are obtained from

• A. Intercalary fibres
• B. Xylem fibres
• C. Phloem fibres
• D. None of these

Answer 1

The correct option is C

Phloem fibres

The correct option is C:

Explanation of correct option:

1. The production of ropes is done by a Commercial jute fiber.
2. The jute fibers are known as sclerenchymatous fibers as they are made up of sclerenchyma cells.
3. But as these fibers are mainly found in the phloem, so they are called phloem fibers.

Explanation of incorrect option:

Option A:

The intercalary fibers are located at the bottom of the internodes, and their important feature is to grow and elongate plants wherein they're present.

Option B:

1. The Xylem fibers lost their protoplast when they matured, so they are known as non-living sclerenchyma cells.
2. Xylem fibers are old parenchyma cells that have developed the secondary cell wall.

Final Answer: Thus, commercial jute fibers are obtained from phloem fibers.