Hemoglobin transports oxygen efficiently because it consists of four polypeptide chains. This arrangement of multiple subunits represents which level of protein structure?
Q1. Hemoglobin transports oxygen efficiently because it consists of four polypeptide chains. This arrangement of multiple subunits represents which level of protein structure?
Answer: Quaternary structure
Explanation: Hemoglobin consists of four polypeptide chains; tertiary structure is tempting but it refers to the folding of a single polypeptide chain only.