Question

Understand protonation and deprotonation of carboxyl and amino groups in amino acids Question Which of the following statements are NOT true regarding the ionization of nonacidic and nonbasic amino acids? Select all that apply: O The amino and carboxyl groups are both ionized at the isoelectric point. U The amino group will be ionized when the pH is above the isoelectric point. The carboxyl group will be ionized when the pH is below the isoelectric point. The amino group will be neutral when the pH is above the isoelectric point. The carboxyl group will be neutral when the pH is below the isoelectric point. FEEDBACK MORE INSTRUCTION SUBMIT Content attribution

Answer 1

Since the anino and is neither acidec nor bassic so it is a necutoal amino acid, containing a single why & a single-coot group Now At the iso electric point the aucino acid shows hol tendency to move either towards cathode or anode thorych anodis ch elecmic field is applied elechic fiel they at this pH anino acid is necetsal in nature set the wwwww and selech amino acid te 2006 -HY HP V-0 e- H- e-NH PI pApI hen pH=pIf - Iso electric They the needi'u is basic s. amins and point Ho c-NH3 cook pH LI At acidic ptt. Amino acid become become negatively Hrely choroged and choroged show at tendency & move toborrels to move towards uode and -N group secou cathode. neutral. Now the statement it. At isoelectric point both anino and corrbonyl group is conized True from the above diguession when pH-pl o The amino group will be ionized when the ph is abore pi False because when pH) I then the medicen become basic L this amino group become neutral. T The carboxyl group will be ionized then the pott is beloo pl False tecause when phep then the medium is acidic Scoo group gets protovated to produce newesroll -DOH. a when pH > pl then amino group is neutsal True I when p" (pl the carboxyl group is neetal Free