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Mitochondrial cristae are sites of

1. breakdown of macromolecules
2. protein synthesis
3. phosphorylation of flavoproteins
4. oxidation-reduction reactions

Correct answer: oxidation-reduction reactions

Solution

Mitochondrial cristae are folds of the inner membrane that house the electron transport chain. These complexes carry out oxidation-reduction reactions as electrons are transferred between carriers during cellular respiration.

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