draw the structure of any 1 non-polar amino acid
There are basically four different classes of amino acids determined by different side chains: (1) non-polar and neutral, (2) polar and neutral, (3) acidic and polar, (4) basic and polar. The amino acid which contain non-polar or hydrophobic side chain are called non-polar amino acids. Ten amino acids have non-polar side chains the structure are shown below.
![](http://2.bp.blogspot.com/-UlQkpK3n7vA/UUv1YwKYEoI/AAAAAAAAAbw/pNx5Af_oBk4/s1600/amino+acids+nonpolar.jpg)
![](http://2.bp.blogspot.com/-UlQkpK3n7vA/UUv1YwKYEoI/AAAAAAAAAbw/pNx5Af_oBk4/s1600/amino+acids+nonpolar.jpg)