Question

How oxygen and corbondioxide exchange in our body during respiration?

Answer 1

It is the circulatory system of the body, responsible for this change. The CO2 rich blood is brought to the lungs where the CO2 is. given off and the haemoglobin in the blood absorbs oxygen.

Answer 2

Oxygen goes to the alveoli which is rich in blood capillaries. Oxygen deficit rbc reaches the capillaries and haemoglobin diffuses oxygen while alveoli diffuses carbon dioxide oxide. Rbc continues flowing to the heart and then to other parts of the body and the carbon dioxide is exhaled out