- Study guides, Class notes & Summaries

What is hemoglobin composed of? A. 4 heme, 4 iron, 4 globins B. 4 heme, 4 iron, 1 globin C. 2 heme, 2 iron, 2 globins D. 1 heme, 1 iron, 1 globin - correct answers A. 4 heme, 4 iron, 4 globins What disorder does a defect in heme synthesis lead to? A. hemoglobinopathy B. coagulopathy C. thalassemia D. porphyria - correct answers D. porphyria What is the function of the enzyme methemoglobin-cytochrome C reductase in red blood cell? A. to keep iron in the ferric state B. t...