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heme

  • noun
  • /hiːm/

The component of hemoglobin (and other hemoproteins) responsible for binding oxygen. It consists of an iron ion that binds oxygen and a porphyrin ring that binds the globin molecules; one molecule binds one molecule of oxygen.

A kind of

  • pigment

Related words

  • decaheme
  • deoxyheme
  • diheme
  • ferriheme
  • ferroheme
  • hemelike
  • hemeprotein
  • hemic
  • monoheme
  • multiheme
  • nonheme
  • octaheme

Where this comes from

This definition is adapted from “heme” on Wiktionary, by its contributors; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.