Answer:
Their are 4 different structures of amino acids.
Explanation:
The 4 groups of amino acids:
1) non-polar and neutral
2) polar and neutral
3) acidic and polar
4) basic and polar
The structure of amino acids:
All amino acids have a central carbon atom, which is surrounded with a hydrogen atom. This central carbon atom is also surrounded by a carboxyl group (COOH), an amino group (NH2), and an R-group. What differs the amino acids is its R group. There are 20 different kinds of amino acids, and the R group, or side chain, is different for each one.
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