heme

n. 血红素 [化] 血红素; 亚铁原卟啉

发音

UK /hiːm/
其它
US /hiːm/

词形变化

hemes 复数 hemes

别名

haem haeme

释义与例句

n.
  1. 1.

    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.

    可数 不可数 化学 生物

    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.

词汇关系

名词

同义词 4

haem haematin hematin protoheme

上位词 1

pigment

整体词 5

hemoglobin haemoglobin cytochrome HB myoglobin

词源

Back-formation from hemoglobin.

来源：wiktionary