Question

Which one of the following is a simple protein?

• A. Nucleoproteins
• B. Glycoproteins
• C. Lipoproteins
• D. Metalloproteins
• E. Albumins

Answer 1

The correct option is E Albumins

Proteins are made up of multiple peptide chains. Peptides are polymers made up of amino acids. In a peptide chain, amino acids are joined together by peptide bonds. Proteins can be simple (e.g., albumin, globulin, zeatin, histones, prolamines etc) or conjugated (e.g., nucleoprotein, i.e., protein conjugated with nucleic acids; glycoprotein, i.e., protein conjugated with carbohydrates, metalloprotein, i.e., metal conjugated with protein as in ferritin, lipoprotein, i.e., lipid conjugated protein as in lipovitellin in egg yolk).