<prompt> What is false about bilirubin?Conjugation is rate limiting stepBilirubin has affinity for elastinTotal Hb content of body is 750 gmNormal serum bilirubin concentration ranges from 0.3-1.3 mgdl, about 80 of which is unconjugated  <response>: TEXT BOOK OF HARSH MOHAN SIXTH EDITION PAGE.593 Bilirubin is a yellow compound that occurs in the normal catabolic pathway that breaks down heme in veebrates. This catabolism is a necessary process in the bodys clearance of waste products that arise from the destruction of aged or abnormal red blood cells 