This increase in blood pHpH due to hyperventilation disrupts O2O2 transport by causing the deprotonation of various residues of
the hemoglobin protein. With less O2O2 reaching the brain, an individual who is hyperventilating may faint. Because the brain needs O2O2 to produce ATP, the brain temporarily shuts down the one function that demands the most ATP—consciousness. Shutting down consciousness conserves energy and allows the brain to devote its resources to maintaining essential life support functions, such as breathing. When O2O2 transport regains its efficiency, the individual regains consciousness. How would rebreathing exhaled air from a paper bag prevent an individual who is hyperventilating from fainting?
The first example of diffusion is smoking a cigarette when u light it it spreads through the air. The second example is lighting a candle in a room it the smoke spreads through the air. Smoke can be very bad for the air and the people around because it can cause many problems with your breathing.
