my name is ekaterina bretskaya. hello. today we will study iron, without which our cells. just choke, don't switch for the next half hour and you 'll find out. iron for life is how our organs get oxygen. no more and no less we learn the norms of hemoglobin content. and how to reveal the hidden deficiency of iron in the ether is coming soon. hemoglobin is actually a complex protein that a living organism produces in red blood cells, erythrocytes, what it consists of and whether life without hemoglobin is possible , my colleagues will tell. the most complex hemoglobin consists of amino acid chains containing iron hemocompounds, its feature is that it easily attaches oxygen, a process saturated with it in the environment, this process occurs in the capillaries of the lungs, after inhalation, oxygen enters the bloodstream through thin walls, and then binds to the hemoglobin molecule. it is sent to all organs and tissues , where it seems to be detached from the protein, and carbon dioxide can join the vacant place in order to leave the body with exhaled air, by the way, it is h