I just read about diffusion today and I want to know how does a cell(plasma membrane to be more specific)know if O2 is being passing through it or CO2?
In: Biology
Chemistry. Molecular oxygen is very reactive and will rapidly bind with hydrogen given the chance, which is exactly what we use it for. We breathe in oxygen specifically to take away waste protons that would otherwise build up and burn us to death with acid.
Carbon dioxide in water disassociates and binds with the water to become carbonic acid so rather than helping to get rid of the acidity it will actually raise it
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