NUTR 1010 Study Guide - Final Guide: Heme, Myoglobin, Cytochrome

• School: University of Guelph
• Department: Nutrition
• Course: NUTR 1010
• Professor: Angela Wallace

Document Summary

March 24th lecture: iron is, a trace mineral, the opposite of a major mineral. Need less than 100mg per day: very important component of hemoglobin, where do we find iron in the diet, heme, in meat, poultry, fish and seafood. Iron binds oxygen molecules to hemoglobin: you (cid:272)a(cid:374)"t transport oxygen without iron, hemoglobin in red blood cells: Picked up by the iron transport protein transferring: iron that remains bound to ferritin: Is excreted in the feces when mucosal cells die: iron that is picked up by transferring. Is transported in the blood to the: liver, bones, other body tissues, iron stores. Iron that is transported out of the mucosal cells in excess of immediate needs can be stored in: the protein ferritin. In the liver, spleen & bone marrow: when ferritin concentrations in the liver become high, some is converted to hemosiderin, deficiency signs only appear after stores are depleted, iron losses.