The respiratory chain embedded in the inner mitochondrial membrane, showing the electron carriers ubiquinone and cytochrome c.
<a href="//commons.wikimedia.org/wiki/User:Kelvinsong" class="mw-redirect" title="User:Kelvinsong">Kelvingsong</a> &amp; <a href="//commons.wikimedia.org/wiki/User:TheBartgry" title="User:TheBartgry">TheBartgry</a>
CC BY-SA 4.0
<a href="//commons.wikimedia.org/wiki/File:Mitochondrion_mini.svg" title="File:Mitochondrion mini.svg">Mitochondrion mini.svg</a>