Chloroplast to mitochondrion, and the whole body between meals

The big picture

Photosynthesis builds it, respiration burns it, hormones decide when.

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this pathway
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Net yieldTwelve processes, one loop · energy flows through; carbon goes in circles
Processes12
The four stages of cellular respiration
Giant Pandas Killed Einstein: Glycolysis → Pyruvate oxidation → Krebs → ETC
Energy vs carbon
Energy flows through; carbon goes in circles