Hemoglobin and Iron Metabolism — Flashcards

Portland Hb has two _____ and two gamma() chains

The heme within macrophages that have consumed RBCs is further broken down into _____ and protoporphyrin

Lead (Pb) poisoning leads to inhibition of the enzymes _____ and ferrochelatase (heme synthesis)

One normal type of hemoglobin is _____ which is composed of two alpha and two delta chains

One normal type of hemoglobin is _____ which is composed of two alpha and two gamma chains

_____ is due to deficiency of the enzyme uroporphyrinogen decarboxylase

Which enzyme is defective in X-linked porphyria?_____

What is the by-product of the reaction catalyzed by cytosolic hydroxymethylbilane synthase in heme synthesis?_____

ALA synthase-2 is expressed in the _____ cells.

The normal daily iron loss from the body is _____ mg.