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Functional group in al amino Found in some nonpolar? hydrophilic? amino acids? a

ID: 31751 • Letter: F

Question

Functional group in al amino Found in some nonpolar? hydrophilic? amino acids? acids? -OH -CH2 Now -COOH -NH2 -SH PO. Twenty amino acids are commonly used in the synthesis of proteins. The chemical properties of their side chains (R groups) differ. What properties doeseach of the following R-groups have? Note that the structures are drawn different ways, some show all the bonds, cs, and Hs, some do not. Hydrophobic or Basic, acidic, or Polar or nonpolar? R group hydrophilic? neutral? Neon Polar hydro Problc CH2 H-C-OH

Explanation / Answer

Functional Group Polar or non polar Hydrophobic or Hydrophilic? Found in all amino acids Found in some amino acids? .-OH Polar Hydrophilic yes No .-CH2 Non polar Hydrophobic No Yes .-COOH Polar Hydrophilic yes No .-NH2 Polar Hydrophilic Yes No .-SH Non polar Hydrophobic No Yes .-PO4 Polar Hydrophilic No Yes Basic, acidic, or Neutral? Polar or nonpolar? Hydrophobic or Hydrophilic? Neutral Non polar Hydrophobic Basic Polar Hydrophilic Acidic Polar Hydrophilic Neutral Polar Hydrophilic