Why is there less oxygen in exhaled air then inhaled?

Answer 1

During inhalation, oxygen is taken in from the environment and diffuses into the bloodstream in the lungs. This oxygen is then transported to the body's tissues to be used in cellular respiration. During this process, oxygen is consumed and carbon dioxide is produced. When we exhale, the air leaving our lungs contains a higher concentration of carbon dioxide and a lower concentration of oxygen compared to the inhaled air. This is because the oxygen has been used up by our cells for energy production.

Answer 2

You breathe air for the oxygen and hydrogen, when you inhale chemical changes begin and you take in the oxygen and exhale carbon dioxide which things like plants then use to make more oxygen. You are not exhaling the same compound.

Answer 3

Breathing is the process that moves air in and out of the lungs, or oxygen through ... The pattern can vary with fear in anticipation of need, and so with anxiety, and .... The air we inhale is roughly composed of (by volume): ... 4% to 5% by volume more carbon dioxide and 4% to 5% by volume less oxygen than was inhaled.

Answer 4

Because we need oxygen, and that is why we breathe at all. When we inhale, our body absorbs some of that oxygen, so when we exhale, there is less to be found.

Answer 5

no,exhaled air has more C02, and less oxygen, it is also saturated with water vapour, which is lost accidentally

Answer 6

Because when you exhale, carbon dioxide comes out, NOT OXYGEN