This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Structure and function of protein, Subject name: Biochemistry
[{'content': 'Protein acts as buffer due to which propey \nSelect and explain. \nA. Colloid, B. Basic, C. Acidic, D. Amphipathic (amphoteric in nature)', 'role': 'user'}, {'content': "Answer: D \nExplanation: Most biomolecules are amphipathic; that is, they possess regions rich in charged or polar functional groups as well as regions with hydrophobic character. Proteins tend to fold with the R-groups of amino acids with hydrophobic side chains in the interior. Amino acids with charged or polar amino acid side chains. Ref: Harper's Illustrated Biochemistry, 30E (2015) Pg No 8.", 'role': 'assistant'}]