Which of the following is in correct order from smallest to largest?
A) peptide - amino acid - polypeptide
B) amino acid - polypeptide - peptide
C) amino acid - peptide - polypeptide
D) protein - glycerol - amino acid
E) disaccharide - polysaccharide - monosaccharide A peptide is two or more amino acids covalently bonded together, whereas a polypeptide is a chain of many amino acids joined together. When a polypeptide folds into a specific shape, it is then identified as a protein.

Question

Quizplus · Accepted Answer

This is the correct order from smallest to largest: amino acid (a single unit), peptide (two or more amino acids covalently bonded together), and polypeptide (a chain of many amino acids joined together). Option A is incorrect because it places peptide before amino acid. Option B is incorrect because it places polypeptide before peptide. Option D is incorrect because it includes glycerol, which is not related to the order of amino acids. Option E is incorrect because it places polysaccharide before disaccharide.

Which of the Following Is in Correct Order from Smallest