Question

SERICIN refers to

• A. Cotton
• B. Wool
• C. Silk
• D. Jute

Hint:

• Silk} is a natural protein fiber.
• Raw silk is composed of two main proteins: fibroin (the fiber itself) and sericin (the gummy coating).
• Sericin} is the glue-like protein that binds the fibroin filaments together.
• Cotton} is a cellulosic fiber from the cotton plant.
• Wool} is a protein fiber from sheep or other animals (keratin).
• Jute} is a cellulosic bast fiber from the jute plant.

Answer 1

The Correct Option is C

SERICIN is a protein that is produced by silkworms and is found in silk fibers. It is secreted by the silkworms to form a protective coating around the fibroin fibers that make up the silk thread. This protein plays an important role in the formation of silk threads that are used in textiles.

1. Cotton

Cotton is a natural fiber derived from the cotton plant. It is made up of cellulose, not proteins like sericin. Cotton is widely used in textiles, but it does not contain sericin.

2. Wool

Wool is another natural fiber, but it comes from the fleece of sheep. Wool is made up of keratin, a fibrous protein, not sericin. While both wool and silk are animal-based fibers, sericin is specific to silk.

3. Silk

Silk is the correct answer. It is a natural protein fiber produced by silkworms, and sericin is a key protein found in silk. Silkworms secrete sericin to form the cocoon, which surrounds the silk fibers.

4. Jute

Jute is a plant-based fiber used for making burlap and sacks. It is derived from the stem of the jute plant and is made of cellulose, not proteins like sericin.

Why Silk is the Correct Answer

SERICIN is a protein that is found in silk and plays a key role in the formation of silk threads. Sericin is secreted by the silkworm during the process of spinning the silk, which is then used for various textile purposes.

Why Not the Other Options?

• Cotton: Made of cellulose, not sericin.
• Wool: Made of keratin, not sericin.
• Jute: Made of cellulose from a plant, not sericin.

A Simple Way to Remember

SERICIN is specifically related to silk, so whenever you think of sericin, think of silkworms and the fibers they create.

Final Answer

The correct answer is Silk.