Long chains formed by joining amino acids together are called?

Long chains formed by joining amino acids together are called?

• A. Nucleotide
• B. Polypeptide
• C. Carbohydrate
• D. Lipid

Answer: (B)

When amino acids link together, they do so with peptide bonds to form long chains called polypeptides. This naming reflects that a polypeptide is a polymer made up of many amino acid units. Proteins are essentially one or more polypeptide chains that fold into specific three-dimensional shapes to carry out cellular functions. The other terms refer to different kinds of biomolecules: nucleotides are the building blocks of nucleic acids like DNA and RNA, carbohydrates are polymers of sugar units, and lipids are a diverse group that are not formed by repeating amino acid units. So the long chain of amino acids is correctly named a polypeptide.

When amino acids link together, they do so with peptide bonds to form long chains called polypeptides. This naming reflects that a polypeptide is a polymer made up of many amino acid units. Proteins are essentially one or more polypeptide chains that fold into specific three-dimensional shapes to carry out cellular functions. The other terms refer to different kinds of biomolecules: nucleotides are the building blocks of nucleic acids like DNA and RNA, carbohydrates are polymers of sugar units, and lipids are a diverse group that are not formed by repeating amino acid units. So the long chain of amino acids is correctly named a polypeptide.