Question

Why do mitochondria have two membranes .What are the functions of the two membranes?

Answer 1

Mitochondria produce ATP by oxidative respiration. A cell maycontain tens or hundreds ofmitochondria, depending on its energy needs. Mitochondria have two membranes:
• An outer membrane
• An inner membrane.
The inner membrane has many infoldings called cristae that increase its surface area.

Answer 2

Mitochondria are made of two membranes. The outer membrane covers the organelle and contains it like a skin. The inner membrane folds over many times and creates layered structures called cristae.

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