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Haemoglobin is one of nature's complexes using a transition metal ion. The haem molecule is a complex with iron (II) at its centre. Oxygen atoms form a dative covalent bond with the Fe (II) which enables oxygen molecules to be transported around the body in the blood. The haem molecule with iron (II) at its centre.
17 Απρ 2023 · Iron is an essential element of various metabolic processes in humans, including DNA synthesis, electron transport, and oxygen transport. Unlike other minerals, iron levels in the human body are controlled only by absorption.
20 Σεπ 2024 · Iron (Fe), chemical element and one of the transition elements, the most-used and cheapest metal. Iron makes up 5 percent of Earth’s crust and is second in abundance to aluminum among the metals. Iron, which is the chief constituent of Earth’s core, is the most abundant element in Earth as a whole.
Iron is an important biological element. [ 1 ][ 2 ][ 3 ] It is used in both the ubiquitous iron-sulfur proteins [ 1 ] and in vertebrates it is used in hemoglobin which is essential for blood and oxygen transport.
I. Introduction. Iron has several vital functions in the body. It serves as a carrier of oxygen to the tissues from the lungs by red blood cell haemoglobin, as a transport medium for electrons within cells, and as an integrated part of important enzyme systems in various tissues.
Human iron metabolism is the set of chemical reactions that maintain human homeostasis of iron at the systemic and cellular level. Iron is both necessary to the body and potentially toxic. Controlling iron levels in the body is a critically important part of many aspects of human health and disease.
18 Απρ 2023 · In this chapter, the basic biochemistry of iron is presented. After introducing the most important molecules involved, such as myoglobin, hemoglobin, ferritin and transferrin, the various classes of iron enzymes are described.
