Question

The R group for serine is `-CH_2-OH`. In the ionized form, serine has what structural formula?

Answer 1

Here's what I get.

The general formula for an amino acid is usually written as `"H"_2"NCHRCOOH"` or `"RCH(NH"_2")COOH"`.

However, amino acids usually exist as zwitterions, an ionic form in which there are separate positively and negatively charged parts.

`"H"_3stackrelcolor(blue)("+")("N")"CHRCO"stackrelcolor(blue)("-")("O")`

The structural formula for the ionic form of serine is