8.1 Metabolic relations are regulated in response to the cell's needs.
Anabolism and catabolism = metabolism, not cannibalism 

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8.2 Cell Respiration: Energy is converted to a usable form in cellular respiration:  Glycolysis, Krebs Cycle, Electron transport chain...All the fun stuff with we left out in SL

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8.3 Photosynthesis:  Light energy is converted into chemical energy

What factors affect photosynthesis rates?

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