The most authoritative answer in 2024
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Benjamin Harris——Works at the International Air Transport Association, Lives in Montreal, Canada.
As a subject matter expert in biology and physiology, I can provide you with an informed answer to your question.
English Answer:
No, humans cannot have green blood. The color of human blood is primarily determined by the presence of hemoglobin, which is an iron-rich protein that carries oxygen in the blood. When oxygen is bound to hemoglobin, it gives the blood its bright red color. When oxygen is released, the color becomes a darker red. The misconception that some animals have green blood is usually based on the presence of a different type of hemoglobin or other pigments in their blood, which can appear greenish under certain conditions. However, in humans, the blood is always some shade of red due to the presence of hemoglobin.
中文回答：
不，人类不能有绿色的血液。人类血液的颜色主要由血红蛋白决定，血红蛋白是一种富含铁的蛋白质，负责在血液中携带氧气。当氧气与血红蛋白结合时，它使血液呈现鲜红色。当氧气释放时，颜色会变成更深的红色。一些动物的血液被误认为呈绿色，通常是因为它们血液中存在不同类型的血红蛋白或其他色素，在某些条件下可能看起来呈绿色。然而，在人类中，由于血红蛋白的存在，血液总是呈现出红色的一种色调。
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Ethan Lee——Studied at the University of Manchester, Lives in Manchester, UK.
Sulfhemoglobinemia (or sulfhaemoglobinaemia) is a rare condition in which there is excess sulfhemoglobin (SulfHb) in the blood. The pigment is a greenish derivative of hemoglobin which cannot be converted back to normal, functional hemoglobin. It causes cyanosis even at low blood levels.read more >>
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