虽然不含有随处可得的荧光素，他们含有一种叫做“发光蛋白”，实际上就是和氧气连接的荧光素蛋白质。
Instead of having freely available luciferin, they contain molecules called photoproteins which are, in effect, luciferin proteins that already have oxygen bound to them.
红血球含有大量的血红素，这种蛋白质能和氧气结合并是血液呈现出红色。
Red blood cells contains large amounts of haemoglobin – the protein that gives blood both its colour and its oxygen-binding capacity.
核糖体按照DNA携带的信息安排蛋白质完成一系列重要的工作，包括从生成皮肤和骨骼，到建立免疫系统和向身体各部位输送氧气。
Based on the information in DNA, ribosomes make proteins to do a range of vital jobs, from making skin and bone, to building immune systems and transporting oxygen around our bodies.
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