Generowanie rodników tlenowych w procesie autooksydacji hemoprotein
Chapman, Ian V.
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Life is a flux of matter, energy and information. Most compounds must remain in a reduced state in the stream. Living organisms use two sources of energy. Autotrophs utylise solar energy while heterotrophs make use of energy released from food oxidation. In the animated world, the turnover of matter is always accompanied by turnover of energy. Oxygen, which is an element indispensable for life of most organisms (aerobes), participates in these processes. In order to provide organisms with appropriate amounts of oxygen, appropriate adaptation mechanisms have evolved, enabling a continuous supply of this gas to cells. One mechanism is the vascular system, accompanied, at the molecular level, by the appearance of an oxygen-carrying respiratory proteins (e.g. hemoglobin, hemocyanin etc.).