The buttons at the top let you switch between an animal, plant, and bacteria cell. Use the Zoom In button at any time to see more detail, or activate the Inspect button, then click on a cell part to learn more about the different parts of the cell.
Your goal is to identify all the parts of the cell listed in the blue box. To identify a part, activate the Select button then click on a part of the cell. To move the cell inside the viewer, de-activate the Select button, then click and drag over the cell. To change the magnification of the cell, click the Zoom In/Out buttons. If you want to play the game with different cell types or at a different difficulty level, return to the menu and select new options.
Select the cell parts involved in the pathway taken to create and deliver a protein to a destination. Start with DNA, which holds the instructions for proteins. Proteins have many destinations, but you will select the path of a protein headed for the cell membrane. Make sure to include every part involved (in order), whether it actively creates protein or whether other cell parts travel through it as part of the process. If you want to play the game with different cell types or at a different difficulty level, return to the menu and select new options.