This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Classification and metabolism of amino acids, Subject name: Biochemistry
[{'content': 'Storage form of proteins in humans: \nSelect and explain. \nA. Titin, B. Collagen, C. Starch, D. None', 'role': 'user'}, {'content': "Answer: D \nExplanation: Body has no specialized cells to store protein efficiently, that's why eating proteins regularly is impoant Body maintains amino acid pool from where proteins can be synthesized but essential amino acids must come in food. Storage form of carbohydrates In plants is starch In animals is glycogen Storage form of fats is TGs (Triglycerides).", 'role': 'assistant'}]