BIOL 1107 Chapter Notes - Chapter 3: Chemical Polarity, Covalent Bond, Amine

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lilacweasel58

24 Aug 2017

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Amino acids have been repeatedly discovered by researchers. Also found in meteorites and produced in experiments that approximate the environment of space. Amino acids are the building blocks of proteins. Amino acids- 20 different building blocks of proteins (79) Structure: a central carbon atom bonds covalently to four different atoms or groups of atoms: h- hydrogen atom, nh2- amino functional group (acts as base, cooh- carboxyl functional group (acts as acid, a distinctive r-group (side chain) The charges on these functional groups are important because they help amino acids stay in solution where they can interact with each other and other solutes and they affect the amino a(cid:272)id"s (cid:272)he(cid:373)i(cid:272)al rea(cid:272)ti(cid:448)it(cid:455) R-group- represents the part of the amino core structure that makes the 20 different amino acids unique (79) Properties of amino acids vary because properties of r-groups vary. The polarity and charge of r-groups affect solubility.

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