Hemoglobin
green = heme groups
red & blue = protein subunits
HemeBlood performs many important functions within the body including:
Supply of oxygen to tissues (bound to hemoglobin, which is carried in red cells)
Supply of nutrients such as glucose, amino acids, and fatty acids (dissolved in the blood or bound to plasma proteins (e.g., blood lipids)
Removal of waste such as carbon dioxide, urea, and lactic acid
Immunological functions, including circulation of white blood cells, and detection of foreign material by antibodies
Coagulation, which is one part of the body's self-repair mechanism
Messenger functions, including the transport of hormones and the signaling of tissue damage
Regulation of body pH (the normal pH of blood is in the range of 7.35 - 7.45)[3] (covering only 0.1 pH unit)
Regulation of core body temperature
Hydraulic functions
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