Biology, 09.11.2019 06:31, youngsiron

Red blood cells are for oxygen transport and contain a pigment called hemoglobin.

this pigment consists of four highly folded chains with a group containing iron at the of each chain.

the iron combines with oxygen.

hemoglobin thus accepts oxygen in the and releases it in the .

carbon monoxide also attaches to hemoglobin and then easily let go.

each hemoglobin can transport molecules of oxygen.

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Red blood cells are for oxygen transport and contain a pigment called hemoglobin.

*this...