Here's a breakdown:
* Amino Acids: These are the building blocks of proteins. They are small organic molecules with a central carbon atom bonded to:
* An amino group (-NH2)
* A carboxyl group (-COOH)
* A hydrogen atom (-H)
* A side chain (R group), which varies between different amino acids and gives each amino acid its unique properties.
* Peptide Bonds: The monomers (amino acids) are joined together by peptide bonds. These are formed through a dehydration reaction (water molecule is removed) between the carboxyl group of one amino acid and the amino group of another amino acid.
* Polypeptide Chains: The linkage of many amino acids forms a polypeptide chain.
* Protein: A protein is formed when one or more polypeptide chains fold into a specific three-dimensional structure. This structure is crucial for the protein's function.
So, to answer your question directly, all proteins are formed by the linkage of monomers called amino acids.
