Which of the following is an illustration that protein tertiary structure is not strictly dependent on protein secondary structure and vice versa? which of the following is an illustration that protein tertiary structure is not strictly dependent on protein secondary structure and vice versa? proteins are composed of amino acid monomers. fibrous proteins are dominated primarily by secondary structure and have little to no tertiary structure. globular proteins have both secondary and tertiary structure. globular structures often contain one or more functional domains.