Question

Silk is a natural protein fiber, some forms of which can be woven into textiles. The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity. How

Answer 1

Answer:

The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture).

The shimmering appearance of silk is due to the triangular prism-like structure of the silk fibre, which allows silk cloth to refract incoming light at different angles, thus producing different colors.

Explanation:

Hope it's helpful for you!

Answer 2

Silk is produced from the cocoons of certain insect larvae, primarily the mulberry silkworm Bombyx mori.

Here are some points explaining how silk is produced:

• The process of silk production begins with the female silk moth laying eggs, which hatch into tiny larvae or caterpillars.
• These larvae are then fed a diet of mulberry leaves, which provide the nutrients they need to grow and spin their cocoons.
• The larvae spin their cocoons using a continuous filament of silk that they extrude from their salivary glands. They use this filament to construct a protective cocoon around themselves.
• Once the cocoons are complete, they are harvested and boiled to kill the larvae inside and to loosen the silk fibers.
• The silk fibers are then unwound from the cocoons, which can yield several hundred meters of silk filament per cocoon.
• The silk filaments are then cleaned, sorted, and spun into thread or yarn that can be woven into textiles.
• The quality and characteristics of the silk depend on various factors such as the species of the silk moth, the quality of the mulberry leaves fed to the larvae, and the harvesting and processing methods used.
• Silk is a highly prized natural fiber due to its unique properties, such as its softness, luster, and strength. It is used to make a wide variety of textiles, including clothing, scarves, and bedding.

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