Learn the tips and tricks behind drawing zwitterions for different amino acids at various pH's. Under physiological conditions an amino acid exists as a Zwitterion, which is an overall neutral molecule with both a positive and negative charge due to its acidic and basic behavior. I will go over the simple concept of just adding hydrogen under acidic conditions and removing hydrogen for basic conditions in how we can draw these different structures.
Multiple examples that are typically found in homework and exams will be covered including a normal amino acid (hydrophilic or hydrophobic), an acidic amino acid, and basic amino acid.
0:00 What is a Zwitterion and How to draw it!
3:36 Tips and Tricks behind Acidic and Basic pH's
5:23 Example of a hydrophobic/hydrophilic Amino Acid at Various pH's
8:43 Basic Amino Acid (Lysine) at Various pH
12:52 Acidic Amino Acid (Aspartic Acid) at various pH
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