Question

Hemoglobin combined with oxygen and form what

Answer 1

Hey mate here is your answer.

Hemoglobin: The protein inside red blood cells (a) that carries oxygen to cells and carbon dioxide to the lungs ishemoglobin (b). Hemoglobin is made up of four symmetrical subunits and four heme groups. Iron associated with the heme binds oxygen.

Answer 2

Red blood cells contain a dark red chemical called haemoglobin.Haemoglobin combines with oxygen in the lungs to form a bright red chemical called oxyhaemoglobin. When the blood gets to places where oxygen is being used up oxyhaemoglobin releases the oxygen and turns back into haemoglobin.