Q. In haemoglobin, which amino acid acts as blood buffer?
A) Histidine
B) Glutamine
C) Aspartic
D) Lysine
Explanation
In haemoglobin, aspartic acid acts as blood buffer. It is a dicarboxylic amino acid. The carboxylic group of the side chain dissociates at physiological pH to give the negatively charged side chain.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.