Which one of the following proteins gives lustrous shiny appearance to silk fibre?

Fibrin
Sericin
Collagen
Nectin

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 2 : Sericin

The correct answer is Sericin.

Sericin is a protein created by Bombyx mori (silkworms) in the production of silk. It constitutes 25-30% of silk protein.
It envelops the fibroin fibres with successive sticky layers that help in the formation of the cocoon.
Sericin gives a lustrous shiny appearance to silk fibre.

Fibroin	Silk consists mainly of two proteins, fibroin and sericin. Silk consists of 70–80% fibroin and 20–30% sericin. Its primary structure mainly consists of the recurrent amino acid sequence.
Collagen	Collagen is a structural protein mainly found in animal tissues. It is a component of connective tissues of tendon and ligaments.
Nectin	Nectins are cell-adhesion molecules. Nectins are involved in adhesion of epithelial cells and neuronal synapse in animal tissue.

4 views Answered 2022-09-04 04:29

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