Home ยป The inner membrane of the mitochondria is usually, highly convoluted forming a series of infolding known as Cell Organelles The inner membrane of the mitochondria is usually, highly convoluted forming a series of infolding known as January 19, 2022 4 Views Q. The inner membrane of the mitochondria is usually, highly convoluted forming a series of infolding known as A. thylakoids B. lamellae C. cristae D. grana Answer: cristae