The inner membrane of mitochondrion is usually highly convoluted forming a series of in-foldings known as
A
Thylakoids
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B
Grana
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C
Cristae
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D
Lamella
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Solution
The correct option is B Cristae The inner membrane is freely permeable only to oxygen, carbon dioxide and water. Its structure is highly complex as it folds and forms finger-like projection called as cristae. The cristae greatly increase the total surface area of the inner membrane for the production of energy in the form of ATP.