Question

(a) Draw a schematic representation of transport and exchange of oxygen and carbon dioxide during transportation of blood in human beings and label on it: Lung capillaries, Pulmonary artery to lungs, Aorta to body, Pulmonary veins from lungs. 

(b) What is the advantage of separate channels in mammals and birds for oxygenated and deoxygenated blood?

Answer 1

(a) A schematic representation of transportation and exchange of oxygen and carbon dioxide during transportation of blood in human beings

A schematic representation of transport and exehange of oxygen and carbon dioxide during transportation of blood in human beings.

(b) It is necessary to separate oxygenated and deoxygenated blood in mammals and birds because they need high energy and large amount of oxygen. The separation of oxygenated and deoxygenated blood provides high oxygen supply to the organs.