Aerobic Cellular Respiration Homework Assignment Name:___________________________________________________ Why is it necessary for us to breathe in oxygen (O2) and breathe out carbon dioxide (CO2)? I want you to give me a very specific answer in relation to the steps of aerobic respiration; meaning, where are oxygen and carbon dioxide involved as reactants or products in chemical reactions of the aerobic respiration pathways? This assignment is from the Virtual Cell Biology Classroom (http://www.scienceprofonline.com/virtualcell-main.html ) on the free science education website Science Prof Online (ScienceProfOnline.com). Visit the website to find more science education resources such as lecture PowerPoints, practice test questions, review questions, science photos, videos and assignments.