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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:
The folds created by the inner membrane are known as the cristae, which contain proteins and molecules that participate in cellular respiration. The matrix of the mitochondria is the space surrounding the cristae, which also includes molecules that participate in cellular respiration as well as ribosomes and mitochondrial DNA. Learning Outcomes. From this lesson, you will have the ability to: Describe mitochondria and explain their relationship to chemical energy