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cy•to•chrome



Pronunciation: (sī'tu-krōm"), [key]
n. Biochem.
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. Cf. electron transport.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

cytochemistrycytocidal
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