BIO 220 Final Exam 2023/2024 with 100% correct answers

A spiral shape constituting one form of the secondary structure of proteins, arising from a specific hydrogen-bonding structure. - correct answer alpha helix One form of the secondary structure of proteins in which the polypeptide chain folds back and forth, or where two regions of the chain lie parallel to each other and are held together by hydrogen bonds. - correct answer beta sheet In a polypeptide chain, the first amino acid has an exposed _______ - correct answer amino group 2 Types of Secondary Protein Structures - correct answer 1) alpha helix 2) beta sheet the end of a polypeptide chain that has an exposed amino group--first amino acid - correct answer amino terminal end or N-terminal one of there discrete sites on a ribosome--A site - correct answer aminoacyl site 3 Discrete Sites on a Ribosome - correct answer 1) peptidyl site (P site) 2) aminoacyl site (A site) 3) exit site (E