cytochrome

[ sahy-tuh-krohm ]

/ ˈsaɪ təˌkroʊm /

noun 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.

Compare electron transport.

Origin of cytochrome

First recorded in 1895–1900; cyto- + -chrome

Words nearby cytochrome

cytoanalyzer, cytoarchitecture, cytocentrum, cytochalasin, cytochemistry, cytochrome, cytochrome oxidase, cytochrome reductase, cytocidal, cytocide, cytoclasis

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for cytochrome

cytochrome

/ (ˈsaɪtəʊˌkrəʊm) /

noun

any of a group of naturally occurring compounds, consisting of iron, a protein, and a porphyrin, that are important in cell oxidation-reduction reactions

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for cytochrome

cytochrome

[ sī′tə-krōm′ ]

n.

Any of a class of iron-containing proteins important in cell respiration as catalysts of oxidation-reduction reactions.

Scientific definitions for cytochrome

cytochrome

[ sī′tə-krōm′ ]

Any of a class of usually colored proteins that play important roles in oxidative processes and energy transfer during cell metabolism and cellular respiration. Cytochromes are electron carriers. They contain a heme group and are similar in structure to hemoglobin and chlorophyll. The most abundant and stable type is cytochrome c. By comparing different kinds of cytochromes, scientists can trace the evolutionary relationships of the organisms in which they occur.

单词	cytochrome
释义	cytochrome [ sahy-tuh-krohm ] / ˈsaɪ təˌkroʊm / noun 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. Compare electron transport. Origin of cytochrome First recorded in 1895–1900; cyto- + -chrome Words nearby cytochrome cytoanalyzer, cytoarchitecture, cytocentrum, cytochalasin, cytochemistry, cytochrome, cytochrome oxidase, cytochrome reductase, cytocidal, cytocide, cytoclasis Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for cytochrome cytochrome / (ˈsaɪtəʊˌkrəʊm) / noun any of a group of naturally occurring compounds, consisting of iron, a protein, and a porphyrin, that are important in cell oxidation-reduction reactions Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for cytochrome cytochrome [ sī′tə-krōm′ ] n. Any of a class of iron-containing proteins important in cell respiration as catalysts of oxidation-reduction reactions. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for cytochrome cytochrome [ sī′tə-krōm′ ] Any of a class of usually colored proteins that play important roles in oxidative processes and energy transfer during cell metabolism and cellular respiration. Cytochromes are electron carriers. They contain a heme group and are similar in structure to hemoglobin and chlorophyll. The most abundant and stable type is cytochrome c. By comparing different kinds of cytochromes, scientists can trace the evolutionary relationships of the organisms in which they occur. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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