This is a worksheet that I created when I realized my students really could not keep straight when the cell would do cell respiration and when a cell might do anaerobic respiration. I find that this works VERY well as a preview activity that prepares them very well to receive the details of the process of Cell respiration. I have included an answer key for you so that you know what I usually put into the graphic organizer. You could also use this worksheet for an exit slip as well. This handout will make teaching this concept a LOT easier. It is perfect for any level of biology from middle school, high school, college or even as part of a homeschool curriculum.