This is when the red blood cells , sent from the heart, pass through the alveoli and the breathed in oxygen is diffused into the cell and carbon dioxide is diffused out. The cells then travel around the body in the blood vessels where the oxygen is needed, before returning to the heart in the veins.
The red blood cells have a substance in them called haemoglobin . When the red blood cells pick up oxygen in the lungs, it becomes oxhaemoglobin
Gas exchange is a function of respiration not digestion.
Alveoli is where gas exchange occurs.
It lowers the area available for gas exchange, therefore gas exchange doesn't happen as quickly or as much as it should.
Capillary system is where gas exchange occurs
The exchange surfaces are moist.
gaseous exchange
gas exchange occurs between pulmonary capillaries and the alveoli in the lungs.
gas exchange occurs between the thin walls of the alveoli and the thin walls of the capillaries
worms carry out gas exchange by absorbing air through their skin
The actual sites of gas exchange within the lungs are the alvioli.
the organ that is involved in gas exchange is the lung. the specific lung structure that is the site for gas exchange is the alveolus which is part of the alveoli, which is found in the lung.
Respiration is a process of gas exchange. Respiration is necessary to supply cells with oxygen for metabolism and to remove the waste by product carbon dioxide.