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Why do eukaryotic organisms have to consume more ATP than prokaryotes when synthesizing fatty acids?
ATP binds to Fatty Acid Synthase and promotes its activity.
ATP phosphorylates the acyl-group of Acetyl-CoA to activate it in eukaryotes.
Eukaryotic Fatty Acid Synthase is inactive until phosphorylated.
Acetyl-CoA is produced in the mitochondria and requires ATP for transport to the cytosol where fatty acid synthesis takes place.
It's a trick question! Both eukaryotes and prokaryotes require the same amount of ATP in fatty acid synthesis.