Question

Which lists the molecules in order from most complex to least complex?

Answer 1

Answer:

proteins, polypeptides, peptides, amino acids

Explanation:

Amino acids are simple organic molecules which have one amino group and one carboxylic group attached to a carbon.

Two amino acids molecule combine (condensation reaction) in which amino group of one amino acid molecule combines with carboxylic group of another molecule to form a peptide (the bond is known as peptide bond). The two amino acids combined is known as dipeptide.

Now many amino acid molecules combine to form long chain of peptides known as polypeptide.

These polypeptides undergo several change in secondary, tertiary and Quaternary structures to form proteins. Thus proteins are most complex, then polypeptide, then peptide and leas complex amino acids.

Answer 2

The correct answer would be the first option. The correct order from the most complex to the least complex would be proteins, polypeptides, peptides, amino acids. The protein is a chain of polypeptide which is a chain of peptides and peptides consists of a number of amino acids.