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翻开生物学类一些教科书,甚至包括高中生物和初中生物、生理卫生,在谈到生物新陈代谢时,经常会出现“代谢废物”的字眼。然而,代谢终产物就是代谢废物吗?这说法值得推敲。在日常生活中,我们习惯把废物定义为没用的,应该丢弃的东西,而对于代谢终产物来说,则完全不同了。所谓代谢终产物,是生化反应完成后的产物,相对这个反应来说是应该排走的。然而它可能是在下一个反应或别的反应里,充当反应物或合成反应的前体物质。例如二氧化碳是糖、脂肪、蛋白质的主要代谢终产物之一,在血液,众所周知,HCO_3~-/H_2CO_3是调节血
Turning over some textbooks in biology, including high school biology and junior high school biology and physical health, the word “metabolic waste” often appears when it comes to biological metabolism. However, is metabolite waste the metabolic waste product? This argument is worthy of scrutiny. In everyday life, we are used to defining waste as something that is useless and should be discarded. For the final product of metabolism, we are completely different. The so-called metabolic final product is the product of the completion of the biochemical reaction and should be drained relative to this reaction. However, it may act as a precursor to the reactants or synthesis reactions in the next reaction or other reaction. For example, carbon dioxide is one of the main metabolic end products of sugar, fat, and protein. In the blood, it is known that HCO_3~-/H_2CO_3 is the regulation of blood.