Therefore, engineers often model scientific phenomena and practice manipulating atomic variables in order to better understand what is happening within these processes.Īfter this activity, students should be able to: However, one limitation to understanding these concepts is the small scale at which these chemical interactions take place. Engineers must understand how electron transport pathways are generated via photosynthesis and cellular respiration if they wish to harvest electrons for electrical power generation. To design MFC-based sensors, engineers must understand the chemical mechanisms of photosynthesis and cellular respiration that occur within organisms such as yeasts, algae or bacteria. This engineering curriculum aligns to Next Generation Science Standards ( NGSS). They also re-engineer a new molecular model from which to further gain an understanding of these concepts. Students explore the science of microbial fuel cells (MFCs) by using a molecular modeling set to model the processes of photosynthesis and cellular respiration-building on the concept of MFCs that they learned in the associated lesson, “Photosynthesis and Cellular Respiration at the Atomic Level.” Students demonstrate the law of conservation of matter by counting atoms in the molecular modeling set.
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