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cute young brunette girl reveals on the field with an old iron fabric construction

Cute Young Brunette Girl Reveals On The Field With An Old Iron Fabric Construction

Biological role
Iron is abundant in biology. Iron-proteins are found in all living organisms, ranging from the evolutionarily primitive archaea to humans. The color of blood is due to the hemoglobin, an iron-containing protein. As illustrated by hemoglobin, iron often is bound to cofactors, e.g. in hemes. The iron-sulfur clusters are pervasive and include nitrogenase, the enzymes responsible for biological nitrogen fixation. Influential theories of evolution have invoked a role for iron sulfides in the iron-sulfur world theory.
Iron is a necessary trace element found in nearly all living organisms. Iron-containing enzymes and proteins, often containing heme prosthetic groups, participate in many biological oxidations and in transport. Examples of proteins found in higher organisms include hemoglobin, cytochrome (high-valent iron), and catalase.

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Filename:479067.jpg
Album name:Babes
Rating (1 votes):55555
Keywords:#cute #young #brunette #girl #reveals #field #old #iron #fabric #construction
Filesize:159 KiB
Date added:May 16, 2012
Dimensions:774 x 1168 pixels
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