Proteins

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What are proteins composed of?

Proteins are composed of one or more long chains of amino acid residues.

What functions do proteins perform within organisms?

Proteins perform functions such as catalyzing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting molecules from one location to another.

What primarily differentiates proteins from one another?

Proteins primarily differ from one another in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes.

What determines the activity of a protein?

<p>The specific 3D structure, resulting from protein folding, determines the activity of a protein.</p> Signup and view all the answers

What is a polypeptide and how does it relate to proteins?

<p>A linear chain of amino acid residues is called a polypeptide, and a protein contains at least one long polypeptide.</p> Signup and view all the answers