Question

Choose odd ones wrt heteropolymer
1.GLUT 4
2. Chitin
3. Collagen
4. Trypsin

Answer 1

Answer:

option 2

Explanation:

option 1,3 and 4 are proteins (heteropolymer of amino acids)

chitin is a polymer of N-acetyl glucosamine (homopolymer)

Answer 2

Answer:

Correct option - (3) Collagen.

Collagen is a heteropolymer.

Explanation:

1. GLUT 4 is a carrier or transmembrane protein. It is made up of 509 amino acids and is a single protein. It does not have two or more chains. Thus, it cannot be a heteropolymer.

2. Chitin is a homopolymer and not a heteropolymer. It is made up of a glucose derivative namely N-acetylglucosamine.

3. Collagen is a type of protein that has a triple-helical conformation. The structure consists of two $\alpha _{1}$ chains along with a single $\alpha _{2}$ chain. These chains are polypeptide in nature. Both the $\alpha _{1}$ chains are identical in nature, but the $\alpha _{2}$   chain is with a different chemical configuration. The three chains entangle each other to form a right-handed helical structure. Thus, collagen is a heteropolymer in nature.

4. Trypsin is an enzyme that functions as a serine protease. It is a globular protein with a tertiary structure. It does not have chains. Thus, it cannot be a heteropolymer.