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The folds of inner membrane of mitochondria are called cristae (singular: crista). Crista increases the surface area of mitochondria. Most of the biochemical work of mitochondria is done on the cristae.

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13y ago
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14y ago

The function of cristae is to expand the surface area of the mitochondria. The cristae are the inner foldings of membrane within the mitochondria. On the cristae, there are sites where cellular respiration occurs. Cellular respiration breaks down sugars into energy to be used in the cell. So, conclusively, the cristae expand the surface area for cellular respiration sites to occur, thus allowing a greater net amount of energy for the cell to use.

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8y ago

It increases the surface area. So respiration becomes efficient

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8y ago

They are the folds. They increase surface area

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Q: What do the cristae do for the mitochondria?
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