The eternal cycle of biochemistry trauma! Every biology student knows the pain of memorizing that convoluted metabolic pathway with its 8 enzymes, acetyl-CoA, and those pesky NAD+/NADH conversions... only to promptly delete it from your brain the second after the exam. Then next semester rolls around and you're right back at "citrate → isocitrate → α-ketoglutarate" wondering why you didn't tattoo it on your arm. The mitochondria might be the powerhouse of the cell, but the Krebs cycle is the recurring nightmare of every science major's academic career.
The Eternal Krebs Cycle Of Academic Suffering

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