STRUCTURE · BIOLOGY · EVIDENCE
Organization makes function.
What is iron doing inside your blood?
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F01 · scale
Find the relevant scale
Where does iron fit into a red blood cell?
F02 · protein
Find iron in a protein
How can an iron atom be part of a protein assembly?
F03 · protein
Compare binding states
What changes when oxygen binds?
F04 · timeline
Follow oxygen, not iron
What moves when hemoglobin releases oxygen?
F05 · evidence-chain
How could we see this?
Is an atomic structure a photograph?
F06 · composition
Another iron world
Does the same iron imply the same function?