Question

Which of the following is a protein by nature?

• A. Polyethylene
• B. Silk and wool
• C. Cellulose
• D. Terylene

Answer 1

The correct option is B Silk and wool

Polyethylene or polyethene is the most common plastic. Its primary use is in packaging.

Silk and wool are natural fibers, that consist largely of particular proteins. They are use for commercial purposes in textile industry.

Cellulose is an organic compound, a polysaccharide consisting of a linear chain of several hundred to many thousands of β linked D-glucose units.

Terylene is a synthetic polyester fibre or fabric based on terephthalic acid, characterized by lightness and crease resistance and used for clothing, sheets, ropes. Therefore only silk and wool are protein by nature and hence, option B is correct answer.