heme vs. hemoglobin

heme

[heem] / him /

noun

Biochemistry.

a deep-red iron-containing blood pigment, C 34 H 32 N 4 O 4 Fe, obtained from hemoglobin.

hemoglobin

[hee-muh-gloh-bin, hem-uh-] / ˈhi məˌgloʊ bɪn, ˈhɛm ə- /

especially British, haemoglobin

Biochemistry.

the oxygen-carrying pigment of red blood cells that gives them their red color and serves to convey oxygen to the tissues: occurs in reduced form deoxyhemoglobin in venous blood and in combination with oxygen oxyhemoglobin in arterial blood. Hb