This printable or digital resource is an ATP Synthase complex structure. The three different conformational states of the β subunit: Open, Loose, and Tight. The Y subunit is in the middle of the β subunits.See my other teaching materials in my shop if you want to know what will happen when the Y subunit starts rotating.PDF and PNG files are compressed as a zip file. Before purchasing, please check that you can open zip files. Colorful images and black and white line art illustrations for colorin