Tag: Negative charge

Amino acids are the building blocks of proteins, but whether they carry a negative charge depends entirely on their chemical structure and the pH of their surroundings. While most amino acids exist as electrically neutral zwitterions, specific side chains can impart a distinct positive or negative charge.

While most amino acids are neutral at physiological pH, a small but important group carries a negative charge. To understand **why are amino acids negative**, we must first explore their chemical structure and the critical role of pH, a key consideration for a balanced nutrition diet.