Final answer:
The coiled spring structure where the side chains extend beyond the helix itself is known as the Beta Sheet. It is a type of secondary structure in proteins that is formed by hydrogen bonding between carbonyl and amino groups in the peptide backbone.
Step-by-step explanation:
The coiled spring structure where the side chains extend beyond the helix itself is known as the Beta Sheet. It is a type of secondary structure in proteins that is formed by hydrogen bonding between carbonyl and amino groups in the peptide backbone. The side chains of the amino acids in the beta sheet extend above or below the sheet and alternate along the chain, and the protein chains are held together by interchain hydrogen bonding.