Question

05 hw
levels of structure in proteins
sort the items into the appropriate bin.
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primary structure
secondary structure
tertiary structure
quaternary structure
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Explanation:

The primary structure of a protein is its linear sequence of amino - acids, represented by the simple amino - acid chain (the third image with the ball - and - stick model of amino acids). The secondary structure consists of local regular arrangements like alpha - helices (second image with a helical shape) and beta - sheets (fifth image with a sheet - like structure). The tertiary structure is the three - dimensional folding of a single polypeptide chain (first image with a single complexly folded chain). The quaternary structure is the arrangement of multiple polypeptide chains (fourth image with multiple chains interacting).

Answer:

Primary structure: Third image (amino - acid chain)
Secondary structure: Second image (alpha - helix), Fifth image (beta - sheet)
Tertiary structure: First image (single folded chain)
Quaternary structure: Fourth image (multiple chains)