More Than 95 Percent of the Protein in a Red

Question

More than 95 percent of the protein in a red blood cell is
A) albumin.
B) porphyrin.
C) hemoglobin.
D) immunoglobulin.
E) fibrinogen.

Accepted Answer

Hemoglobin is the main protein found in red blood cells, comprising over 95% of the protein content. Hemoglobin binds to oxygen and transports it throughout the body. Albumin, immunoglobulin, and fibrinogen are other proteins found in the blood, but they are not the main component of red blood cells. Porphyrin is a compound found in hemoglobin, but it is not a protein.