The infoldings of the inner membrane of mitochondria are called ______.

grana

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stroma

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lumen

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cristae

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Solution

The correct option is D cristae
Mitochondrion is a double membrane-bound organelle. It consists of an outer membrane and an inner membrane. Mitochondrial cristae are folds of the inner membrane that increase the surface area. This provides larger space for processes that happen across the membrane, like ATP synthesis.

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What are the infoldings of inner membrane of mitochondria called as?

The mitochondrial inner membrane consists of a number of infoldings called cristae. The increased surface area due to cristae helps in:

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