Which Level of Structural Organization Best Describes the Amino Acid

Question

Which level of structural organization best describes the amino acid sequence of a protein?
A)primary
B)secondary
C)tertiary
D)quaternary

Accepted Answer

The primary level of structural organization refers to the sequence of amino acids in a protein chain. This sequence will ultimately determine the protein's overall structure and function. Secondary structure refers to the local folding patterns of the amino acid chain, tertiary structure refers to the overall 3-D shape of the protein, and quaternary structure refers to the arrangement of multiple protein subunits.