Cytochrome
//ˈsaɪtəkɹəʊm// noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 Any of various related hemoproteins found in the cells of most organisms, which are an important part of cell respiration.
"The drug-metabolizing enzymes in the liver, called cytochrome-p450s, comprise a large family of some fifty or more related enzymes, which have evolved in a remarkable way […]."
- 2 (biochemistry) a class of hemoprotein whose principal biological function is electron transfer (especially in cellular respiration) wordnet
Example
More examples"Electrons in the light dependent reactions enter a cyclic pathway when the ratio of NADPH to NADP+ is high. In other words, when there is more NADPH than NADP+ available, this causes electrons to cycle from the photosystems and cytochrome complex since the electrons do not have anywhere to go. This pathway does not cause the production of NADPH but still causes the production of ATP."
Etymology
From cyto- + -chrome.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.