What do you mean by the term oxygenated and deoxygenated blood?
1 Answer
Oxygenated blood is that in which hemoglobin is combined with oxygen; whereas in deoxygenated blood hemoglobin is without oxygen.
Explanation:
Air is inhaled into lungs during breathing. Hemoglobin in the blood, traversing through capillaries in alveoli in lungs, combines with oxygen to become oxyhemoglobin. This blood is termed oxygenated or pure blood.
Pure blood from lungs is circulated throughout the body by arteries. The oxygen from the blood is used by different cells of the body for cellular respiration. Carbon dioxide given out of cellular respiration is carried by blood to the lungs where it is exhaled during breathing. This blood devoid of oxygen is termed deoxygenated or impure blood.
Impure blood is carried to the lungs and is converted into pure blood by combining with oxygen as earlier explained. Blood thus acts as carrier of oxygen, needed for cellular respiration, to all the living cells in the body of an organism.
