Respiration uses oxygen and to produce carbon dioxide and water, while Photosynthesis uses carbon dioxide and water to make oxygen. Avoid the zombie cells and collect the correct ingredients to make photosynthesis or respiration. Use the arrow keys to move, and don't run into zombies more than 3 times, or you start all levels over! IF YOU LOSE, PRESS THE GREEN FLAG TO START OVER!
Thanks to AlSweigart for the maze code! Created by JKHN Co.