Peel off the skins, chop, and discard the seeds and tough inner membrane.

These are not simple random folds but rather invaginations of the inner membrane, which can affect overall chemiosmotic function.

Like mitochondria, they are bound by distinct double membranes and one has an inner membrane with some cristae-like projections.

The cortex contains an inner membrane known as the core.

This can occur since an alternative return route for the protons exists through an uncoupling protein in the inner membrane.