NCERT Important Questions Class 9 Science biology Chapter 6
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Chapter 6 Tissues
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Which tissue makes up the husk of coconut?
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The husk of a coconut primarily comprises a tough and fibrous tissue known as “coir” or “fiber.” This sturdy material is derived from the mesocarp, the middle layer of the coconut’s pericarp—the protective outer covering of the fruit.
1. Composition: Coir consists of long, strong, and resilient fibers that encase the coconut seed. These fibers provide exceptional durability and strength to the husk.
2. Protective Function: Serving as a natural shield, the coir tissue protects the inner coconut seed from external elements, physical damage, and moisture.
3. Commercial Uses: Due to its robust nature, coconut coir finds versatile applications. It is commonly used in making ropes, mats, brushes, and geotextiles. Moreover, it serves as an essential component in horticulture, acting as a substrate or growing medium for plants.
4. Environmentally Friendly: Coir is biodegradable and environmentally friendly, making it a sustainable choice in various industries. Its widespread usage aligns with eco-friendly practices.
5. Extraction: Extraction of coir involves separating and processing the fibers from the coconut husk. These fibers are then treated and spun into various products for commercial and domestic use.
The coir tissue within the coconut husk exemplifies nature’s design, providing robust protection to the coconut seed while also serving as a valuable resource in numerous industries due to its strength, versatility, and eco-friendly characteristics.
Sclerenchymatous fibres.