Mouse controls active. Start the camera for hand control.
Pinch (thumb + index) on a part to select it. Pinch in empty space and move your hand to rotate. Pinch with both hands and spread or close them to zoom. Point with your index fingertip to highlight. Mouse: drag, wheel, click. Buttons: stop/resume the auto-rotation, isolate the selected part, open the source code.
Cell guide
Animal cell: what each part is, what it does, and how to remember it.
Mind map test
Each bubble describes a job. Click one and choose which part of the cell does it.