If a molecule of CO2 released into the blood in your left toe is exhaled from your nose, it must pass through all of the following except a. the pulmonary vein. b. the trachea.c. the right atrium. d. the right ventricle.
Trace Minerals (Iron, Copper, Selenium) A. Iron o Ferrous (Fe ) 2+ o Reduced form o Ferric (Fe )3+ o Oxidized form - By doing so, iron can serve as a cofactor to enzymes involved in the numerous oxidation-reduction reactions that commonly occur in all cells. Food Sources Heme iron - Animal origin - Organ meat - Lean lamb - Lea beef - Pork - Fish - Poultry o Found in meat in hemoglobin, myoglobin, cytochromes o Highly bioavailable Non- heme Iron - Plant based - Nuts o Relatively poor bioavailability Iron Uptake Nonheme iron - Must be reduced before It can get in
