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Why proteins are called Heteropolymers?

A polymer which is made from two or more different types of monomers is called heteropolymer. Even if the monomers are not identical, the resulting polymer will be heteropolymer. Proteins are heteropolymers as they are made up of different amino acids.

Are proteins homopolymers of amino acids?

A heteropolymer has more than one type of monomer. Proteins are heteropolymers made of amino acids. While a nucleic acid like DNA or RNA is made of only 4 types of nucleotide monomers, proteins are made of. Each protein is made of a long chain of amino acids.

What are the two sources of protein?

The two main food groups that contribute to protein are the:

  • ‘lean meat and poultry, fish, eggs, tofu, nuts and seeds and legumes/beans’ group.
  • ‘milk, yoghurt, cheese and/or alternatives (mostly reduced fat)’ group.

What are three protein sources?

In this Article

  • Seafood.
  • White-Meat Poultry.
  • Milk, Cheese, and Yogurt.
  • Eggs.
  • Beans.
  • Pork Tenderloin.
  • Soy.
  • Lean Beef.

Is Heteropolymer a starch?

If all the monomers are identical the polymer is a homopolymer. For example starch is made solely of glucose molecules so starch is a homopolymer. If the monomers are not identical the polymer is a heteropolymer. Proteins are made up of up to 20 different amino acids, so proteins are heteropolymers.

Is Collagen a Heteropolymer?

Collagen is a heteropolymer with a triple helical conformation. Two identical polypeptide chains (α1) and a third chain (α2) with a distinct chemical composition are tangled around each other to form a right-handed helical configuration.

Is chitin a Heteropolymer?

Chitin is a homopolymer, made up of N-acetylglucosamine, which is a derivative of glucose.

Is chitin a starch?

Is chitin a starch? Starch (a polymer of glucose) is used as a storage polysaccharide in plants, being found in the form of both amylose and the branched amylopectin. Cellulose and chitin are examples of structural polysaccharides.

Is chitin a Homopolysaccharide?

Chitin is a linear homopolysaccharide composed of N-acetyl-D-glucosamine residues in β linkage (Fig. 11-18). The only chemical dif ference from cellulose is the replacement of a hydroxyl group at C-2 with an acetylated amino group.

Which is not Homopolysaccharide?

For example, starch, glycogen, inulin, cellulose, chitin, etc. Agar, pectin, hyaluronic acid, heparin, etc., are heteropolysaccharides.