respiratory chain

American  

noun

Biochemistry.

1. a series of mitochondrial proteins that transport electrons of hydrogen, released in the Krebs cycle, from acetyl coenzyme A to inhaled oxygen to form H 2 O: the energy released in the process is conserved as ATP.

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Example Sentences

Inside mitochondria, energy production depends on respiratory chain complexes.

From Science Daily • Dec. 19, 2025

Recent research shows that the infection leads to significant transcriptional modification of genes encoding proteins involved in the mitochondrial network, such as the respiratory chain, apoptosis, and the structural organization of mitochondria.

From Science Daily • May 7, 2024

"But there are also proteins that are synthesized by the mitochondria themselves. One of these is ND5, a subunit of complex I of the respiratory chain," explained Professor Kristina Friedland.

From Science Daily • Apr. 25, 2024

"The synthesis process is undermined and fewer proteins of the subunit ND5, which is of central relevance to complex I, are formed because the whole process commences with the respiratory chain," added Friedland.

From Science Daily • Apr. 25, 2024