system
Given the following post, respond as if you're commenting on Reddit:
human
Take a breath and hold it in. At what rate is the oxygen taken into the blood? Is this a linear function? -- will all the oxygen eventually be removed? [Fifth time posting this question, first time in plain english]
gpt
It is not a linear function. As the oxygen concentration decreases, the driving force responsible for oxygen transport into the blood also decreases. The driving force dependence on concentration results in nonlinear behavior.