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Definitions
a complex red organic pigment containing iron and other atoms to which oxygen binds
Word origin
Back-formation from hemoglobin.
Used in a sentence
“The binding of oxygen to the iron molecule causes the hemoglobin molecule to undergo conformational changes that affect the binding of oxygen to other heme sites.”
“Impossible's breakthrough was in discovering that meat's essence comes from heme—the iron-rich molecule in blood that carries oxygen and is responsible for the deep-red color.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
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