Question

PLEASE HELP!

Which structure of a protein is the second folding of the protein chain?

primary

secondary

tertiary

quaternary

Answer 1

There are 4 levels of protein structure. The first is primary, the second is secondary, the third is tertiary, and the fourth is quaternary. Please see attached image for clarification.

Answer 2

Tertiary

The secondary structure begins the folding up process where as in the tertiary structure, the protein is folded into its accurate 3D structure, associating to the purpose. This is tied together by a series of non-covalent communications between side groups, including ionic communications, disulphide bonds, hydrophobic interactions, Van der Waals energies and hydrogen bonds.