Question

Of which substance the fibre secreted by silk worm is made up​

Answer 1

Answer:

Silk is a fibre produced by the silkworm in production of its cocoon.

Answer 2

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 (sericulture).