draw amino acids in zwitterion form

Question

Draw the individual amino acids that form this tripeptide below. Draw the zwitterion forms.

Val-Thr-Cys

Answer 1

We can't readily draw on this platform, but the zwitterion form is that which is neutral with the amine group being protonated (+) and the carboxyl group being de-protonated (-).

CH3CH(CH3)CH(NH3⁺)COO^- = VALINE

CH3CH(OH)CH(NH3⁺)COO^- = THREONINE

HSCH2CH(NH3⁺)COO^- = CYSTEINE