Please help me asap Identify the one best correct answer and

Identify the one best correct answer and write it clearly. Answers not marked clearly cannot be given There are multiple clusters of questions focused on the same sure read the individual instructions for each cluster. Complete the following vocabulary exercise related to the level of structure in proteins. A word bank is not provided here as you should know these vocabulary words. structure is achieved when a protein folds into a compact, three-dimensional shape stabilized by interactions between side-chain R groups of amino acids. structure is the result of two or more protein subunits assembling to form a larger, biologically active protein complex. structure is the sequence of amino acids in a protein. structure describes the alpha-helices and beta sheets that are formed by hydrogen bonding between backbone atoms located near each other in polypeptide chain.

Solution

17. Tertiary structure

It is three dimensional structure of monomeric and multimeric protein molecules folded into a compact globular structure.

18. Quarternary structure

It is a three D structure when multi sub units of protein fit together and form a biological active protein complex.

19. Primary structure

It is the linear sequence of amino acids in polypeptide chain.

20. Secondary structure

Defined by patterns of hydrogen bonds between main chain peptide groups.