Explain gaseous exchange?

1. What is meant by gaseous exchange?
2. What is gaseous exchange in lungs?
3. What are the steps of gas exchange?

What is meant by gaseous exchange?

Gas exchange commonly refers to the exchange of oxygen and carbon dioxide between a living thing and its environment. In animals, gas exchange happens during respiration (breathing). In plants, it happens during photosynthesis, which is the process by which plants make their own food.

What is gaseous exchange in lungs?

At each cell in your body, oxygen is exchanged for a waste gas called carbon dioxide. Your bloodstream then carries this waste gas back to the lungs where it is removed from the bloodstream and then exhaled. Your lungs and respiratory system automatically perform this vital process, called gas exchange.

What are the steps of gas exchange?

Three processes are essential for the transfer of oxygen from the outside air to the blood flowing through the lungs: ventilation, diffusion, and perfusion.