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Question

Mitochondrial inner membrane encloses ______

This question was previously asked in
NEET UG Re-Exam 2026 Question Paper (21-Jun-2026)
The correct answer is
matrix

Mitochondrial Structure and Enclosure

Mitochondria are vital organelles within eukaryotic cells, often referred to as the cell's powerhouses. They are characterized by a double membrane system.

The inner mitochondrial membrane is a critical boundary. It is folded into structures called cristae and forms the boundary of the innermost compartment of the mitochondrion.

This innermost compartment, enclosed by the inner mitochondrial membrane, is known as the mitochondrial matrix. The matrix contains enzymes crucial for cellular respiration, mitochondrial DNA, and ribosomes.

Therefore, the mitochondrial inner membrane encloses the matrix.

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