Question

In mammals and birds why is it necessary to separate oxygenerated blood and deoxygenerated blood?

Answer 1

Answer:We get glucose from what we eat. In tissues this glucose is break down to get energy in the form of ATP which is stored in mitochondria. For such break down oxygen is required. (GLYCOLYSIS, LINK REACTION, KREB'S CYCLE ). To happen all the above oxygen is required separately. In this process of break down of glucose heat is also evolved which is used to maintain body temperature and excess heat is removed in theform of hot air (carbon dioxide )

Explanation:

Answer 2

Separation of oxygenated and deoxygenated blood allows good supply of oxygen to the body . This system is useful in animals that have high energy requirement . Mammals and birds constantly need oxygen to get energy to maintain their body temperature constant .