complex, maybe low hemoglobin, this protein was discovered back in 1851 by the german physiologist ottofungem almost centuries later in 1959 and its structure was described by an austrian molecular biologist. max perus. for which, after 3 years, he received the nobel prize on the air of the project team. my name is ekaterina beretskaya. hello. today we will study iron, without which our cells. just choke, don't switch in the next half hour and you'll find out. iron for life how our organs receive 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, in fact, is a complex protein that a living organism produces in red blood cells, erythrocytes, what it consists of and is life possible without hemoglobin, my colleagues will tell. the most complex white hemoglobin consists of amino acid chains containing a heme iron compound; its feature is that it easily attaches oxygen to a process saturated with it this happens in the capillaries of the lungs, after inhalation, oxygen enters the bloodstream