cytochrome
/sahy-tuh-krohm/US // ˈsaɪ təˌkroʊm //UK // (ˈsaɪtəʊˌkrəʊm) //
细胞色素,胞衣,色素,染色体
Definitions
n.名词 noun
- 1
Biochemistry.
- : any of several carrier molecules in the mitochondria of plant and animal cells, consisting of a protein and an iron-containing porphyrin ring and participating in the stepwise transfer of electrons in oxidation reactions: each cytochrome alternately accepts and releases an electron at a slightly lower energy level in the order designated b, c1, c, a, and a3.
Examples
It might have been particularly attractive to the bacteria that were forerunners of mitochondria, since cytochrome c oxidase, the last enzyme in the chain of reactions that mitochondria use to produce energy, requires copper to function.
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