- Study guides, Class notes & Summaries

What is hemoglobin composed of? - correct answers 4 heme, 4 iron, 4 globins What disorder does a defect in heme synthesis lead to? - correct answers porphyria What is the function of the enzyme methemoglobin-cytochrome C reductase in a red blood cell? - correct answers to keep iron in the ferrous state Which hemoglobin has a 200 times greater binding capacity for the hemoglobin molecule than oxygen? - correct answers carboxyhemoglobin What product is formed when ferrous iron of hemog...