A polypeptide chain is a single linear chain of amino acids bonded together by peptide bonds. It's an essential component in creating proteins.
Imagine building blocks - each block represents an amino acid, and when you connect them all together, you get your polypeptide chain. Just as different arrangements of blocks can create different structures, different sequences of amino acids result in different types of proteins.
Amino Acid: These are organic compounds that combine to form proteins. There are 20 standard ones involved in human biochemistry.
Peptide Bond: This bond occurs between two molecules when the carboxyl group (-COOH) of one molecule reacts with the amino group (-NH2) of another molecule, releasing water (H2O).
Primary Structure: This term refers to sequence of amino acids forming a protein or polypeptide chain.
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