Heme

Heme, or haem (pronounced /hi:m/ HEEM), is a precursor to hemoglobin. It is necessary to bind oxygen in the circulatory system. Heme is made in both the bone marrow and the liver.

Function[change]

Hemes can do many things, such as catalyse reactions or move chemicals. Hemes are usually bound to proteins, and make hemoproteins.

Examples of hemoproteins include hemoglobin, myoglobin, leghemoglobin, and cytochrome.

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