Which of the following processes do not occur at the cristae in mitochondria?

Photosynthesis does not occur at the cristae in mitochondria. Cristae are the inner folds of the mitochondrial membrane where the oxidation-reduction reaction takes place during cellular respiration to generate ATP. This process involves the electron transport chain and chemiosmosis. The cristae also provide a large surface area for enzymes involved in the breakdown of macromolecules.