Carbon and the Molecular Diversity of Life

A number of characteristic groups can replace the

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A number of characteristic groups can replace the hydrogens attached to skeletons of organic molecules The Chemical Groups Most Important in the Processes of Life Estradiol and testosterone are both steroids with a common carbon skeleton, in the form of four fused rings These sex hormones differ only in the chemical groups attached to the rings of the carbon skeleton Functional groups are the components of organic molecules that are most commonly involved in chemical reactions The number and arrangement of functional groups give each molecule its unique properties The seven functional groups that are most important in chemistry of life o Hydroxyl group o Carbonyl group o Carboxyl group o Amino group o Sulfhydryl group o Phosphate group o Methyl group ATP: An Important Source of Energy for Cellular Processes An important organic phosphate is adenosine triphosphate (ATP) ATP consists of an organic molecule called adenosine attached to a string of three phosphate groups ATP stores the potential to react with water, a reaction that releases energy to be used by the cell
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