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Function of Mitochondrial Cristae. Before we can explain the functioning of the crista (plural = cristae), we need to revisit what a mitochondrion does. The mitochondrion is the cellular organelle where cellular respiration takes place.Cellular respiration is the process that creates chemical energy in the form of ATP from simple food molecules.ristae are folds of the inner mitochondrial membrane. The electron transport chain and chemiosmosis takes place on this membrane as part of cellular respiration to create ATP and can be seen in the diagram:
Best Answer: The inner membrane of the mitochondrion, the cristae is folded to increase the surface area. The cytochromes of the electron transport chain are located on stalked particles on the christae.The electron transport chain is the main energy (ATP) generating stage aerobic respiration.hey are a separate part of the mitochondrion that are attached to the inner membrane. They are derived from the inner membrane, and are pinched off by characteristic protein complexes at the point where they meet the inner membrane (this is called a 'cristal junction').