It is a true solution of ions (e.g. potassium, sodium, and chloride), small molecules (e.g. sugars, amino acids, and ATP), and a colloidal solution of large molecules (e.g. proteins, lipids, and nucleic acids).
It is a true solution of ions (e.g. potassium, sodium, and chloride), small molecules (e.g. sugars, amino acids, and ATP), and a colloidal solution of large molecules (e.g. proteins, lipids, and nucleic acids).
它是含离子（钾离子，钠离子还有氯离子），小分子（糖，氨基酸，ATP）还有大分子胶体（蛋白质，脂肪，核酸）的溶液。