The Aerobic Respiration Process

Question 1

Stage 1: What is Oxygen Inhalation

Answer 1

When you breathe in, air enters the lungs, and oxygen diffuses from the alveoli (air sacs in the lungs) into the bloodstream through the thin walls of the alveoli and capillaries.

Question 2

Stage 2: What is Oxygen Transport?

Answer 2

Haemoglobin in red blood cells binds to the oxygen and carries it via the bloodstream to tissues and cells throughout the body.

Question 3

Stage 3: What is Cellular Respiration?

Answer 3

Inside the cells, oxygen is used in the mitochondria to carry out aerobic respiration. In this process, glucose (from digested food) is broken down in the presence of oxygen to produce energy (ATP), carbon dioxide, and water.

Question 4

Stage 4: What happens in Carbon Dioxide Removal?

Answer 4

The byproduct of aerobic respiration, carbon dioxide, is transported back to the lungs via the bloodstream.

Question 5

Stage 5: What happens in Exhalation?

Answer 5

Carbon dioxide is expelled from the body when you breathe out. The gas moves from the blood into the alveoli and then is exhaled.