What Is Protein Monomer? 

Ekansh Agarwal

Updated on:

Do you know the protein monomer? If not, then read this article till the end. You all may be aware of protein because it is frequently termed in diet or by doctors. Protein is a naturally found polymer that plays an important role in life processes. Protein makes up more than 50% of the dry weight of cells and is present in larger amounts than any other biomolecules. Proteins are vastly different from other major types of biomolecules including lipids, carbohydrates, and nucleic acids. Without further discussion let us see what a protein monomer is.  

What Is Protein Monomer? 

The protein monomer is called an amino acid, which is the building block of polymer protein. A large number of amino acids or monomer of protein molecules join together by peptides to form polypeptide chains. Two or more polypeptide chains are joined together to form large proteins. The amino acid a monomer of a protein sequence determines the structure and function of a protein. 

Protein monomer structure consists of a polypeptide chain, which folds into a three-dimensional structure to constitute a functional protein. Often an operational macromolecule is composed of more than one such chan and sometimes requires small molecules to assist in its function. While talking about the protein monomer function, the basic function of they is to provide cell structure and also send chemical signals, speed up chemical reactions, etc. 

There are a total of 20 different amino acids that form all the proteins in the biological system by arranging them in different sequences. The sequences of amino acids are known as the primary structure of a protein. The sequence of amino acids is known as the primary structure of a protein. 

Here, you know the protein monomer example as well as the protein monomer and polymer. Let us know its properties. 

Also Read : What Is Glucose Monomer?  

Properties Of Protein Monomer 

The properties of protein monomer are, 

  • Amino acid is colorless, odorless, nonvolatile, crystalline solid. 
  • It has a melting point and it decomposes above 200 degrees Celsius. 
  • Amino acid means protein monomer has unique characteristics arising from the size, shape, solubility, and ionization properties of its R group. 
  • Protein monomers are amphoteric in nature that s they act as both acids and bases due to the two amine and carboxylic group present. 

Let’s have a look at the actual structure and functions of a protein monomer or polymer. 

Also Read : What Is Styrene Monomer? 

Protein Structure And Function 

Let’s learn about the protein structure and protein function one by one in detail. 

Protein Structure 

Protein structure can be discussed in terms of four levels of structures, primary, secondary, tertiary, and quaternary. The primary structure of a polymer protein is its amino acid sequence. 

While talking about the secondary structure of protein there are two types of secondary structure, one is α-helix and the second is β-sheet. The tertiary structure of proteins is determined by the three-dimensional structure, which can be either globular or fibrous. The tertiary structure is more complex and compact. 

The quaternary structure of a protein is fast and more complex due to its higher degree of folding patterns. Most of the proteins with quaternary structure, contain subunits, which are held together by non-covenant bonds. 

Click here – What Is Glucose Monomer?

Protein Function 

There are multiple functions of protein because it is crucial to good health. One of the basic functions of protein is the growth and maintenance of an organism. Your body needs protein for the growth and maintenance of tissues. Under normal circumstances, your body breaks down the same amount of protein that it uses to build and repair tissues. 

Enzymes are proteins that allow some important chemical reactions to take place within your body. Proteins are hormones, which are chemical messengers that aid communication between your cells, tissues, and organs. 

Facts About Protein 

Here are some facts about protein, 

  • Protein helps in deciding your body structure and is involved in cell division for growth, reproduction, and healing. 
  • The human body consists of around 100,000 different proteins made by the different combinations of 20 amino acids. 
  • Nearly 18 to 20% of the body weight is due to proteins. 
  • The lifespan of proteins is only two days or less. 
  • Nails and hair are made up of a protein called Keratin and these have sulfur bonds. 
  • Curlier the hair more sulfur links they have. 

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Where Are Proteins Monomers?

The building blocks of proteins are amino acids, which contain elements such as H,N,O,C , and more. They are the monomers of the proteins.

What Are The 4 Monomers Of Proteins?

There are four main types of monomer, including sugars, amino acids, fatty acids, and nucleotides.

What Is The Monomer And Function Of Protein?

Amino acids are known as protein monomers. They join a large number and connect through peptide bonds, which construct polypeptide chains. Large proteins are formed when two or more polypeptide chains are joined together. The sequence of amino acids decides the function and structure of a protein.

How Many Monomers Are In Proteins?

Like the carbohydrates, proteins are composed of smaller units. The monomers that make up proteins are called amino acids. There are around twenty different amino acids.

Click here – What Is Styrene Monomer?

Why Are Proteins Monomers?

Monomers of Protein Bonds

Living cells are assemblage of large molecules such as proteins, nucleic acids and polysaccharides and as these molecules are larger by many exponential powers than the smaller units or molecules from which these are made. These smaller units numbering thousands are called monomers.

What Is The Polymer Of Protein?


Protein polymers — engineered repetitive polypeptides, up to 500 or more amino acids in length — are a uniquely tunable family of functional biomaterials.

Is DNA Is A Polymer?

DNA consists of two long polymers (called strands) that run in opposite directions and form the regular geometry of the double helix. The monomers of DNA are called nucleotides.


From this article, you have learned in detail what is the monomer of a protein. What is a monomer? So, the monomer is a basic unit that forms a long chain of polymers by attaching them to each other. An example of a protein monomer is the Amino acids, above we have learned it in detail. Protein is one of the essential factors required for your body. Protein examples are meat, poultry, fish, eggs, and dairy foods. So, you can eat this food to get more protein. So, this was all about protein monomer.  


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