Animals breathe in air containing oxygen and breathe out air containing less oxygen. The consumed oxygen is used: a. in the glycolysis pathway. b. in the citric acid cycle. c. as an electron acceptor in the respiratory electron transport chain. d. in photosynthesis. e. in the conversion of pyruvate to acetyl Co-A.

Respuesta :

The consumed oxygen is used c. as an electron acceptor in the respiratory electron transport chain.

In the field of biology, the electron transport chain can be described as a process where electrons are taken from compounds that are electron donors to compounds that are electron acceptors. The electron transport chain is a series of redox reactions that occur in the mitochondrial matrix.

Animals breath in the air and the consumed oxygen serves as an electron acceptor in the respiratory electron chain process. The consumed oxygen is changed into an ion by accepting two electrons and circulating it via the electron transport chain.

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