Question

what is hemoglobin??​

Answer 1

Explanation:

Hemoglobin or haemoglobin, abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein in the red blood cells of almost all vertebrates as well as the tissues of some invertebrates. Hemoglobin in blood carries oxygen from the lungs or gills to the rest of the body.

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Answer 2

• Hemoglobin, sometimes written hemoglobin, is an iron-containing protein found in the blood of many animals, particularly in vertebrates' red blood cells (erythrocytes), which carries oxygen to the tissues.
• With oxygen, hemoglobin creates a reversible, unstable connection.

• Hemoglobin is produced by red blood cell-forming cells in the bone marrow.
• When red blood cells die, hemoglobin is broken up: iron is salvaged, transported to the bone marrow by proteins called transferrins, and used in the production of new red blood cells.
• The rest of the hemoglobin becomes bilirubin, a chemical excreted in the bile and responsible for the yellow-brown colour of the faces.