Which of the following has a tertiary protein structure?
A) ketone
B) amide
C) ribonucleotide
D) amino acid
E) fibrous protein

Question

Quizplus · Accepted Answer

Fibrous proteins, such as collagen and keratin, have a tertiary structure in which the polypeptide chain is tightly coiled or folded into a specific three-dimensional shape. A ketone (A) and an amide (B) are functional groups, not proteins, while a ribonucleotide (C) is a component of RNA, which is a type of nucleic acid. An amino acid (D) is a building block of proteins and has a primary structure, but not a tertiary structure.

Which of the Following Has a Tertiary Protein Structure