Are these 3 methods correct? excretion of co2?

[Cat_with_no_eyes]

Are these 3 methods correct, of how co2 is taken back to the lungs to be excreted?


1 -tissue respiration

2 - ventilating the lung

3- gaseous exchange

 

[Green Destiny]

Respiration in lungs is the answer. It accounts for the periodic concentration of Co2 when lungs respire. It causes the process to occur all over again.

 

[Hercules Rockefeller]

Are these 3 methods correct, of how co2 is taken back to the lungs to be excreted?

1 -tissue respiration
2 - ventilating the lung
3- gaseous exchange

I'm not sure I understand what you are asking. Are you asking if each of those processes plays a role in production of CO[sub]2[/sub] in the body and excretion of CO[sub]2[/sub] from the body? If so, then the answer is yes – all those processes are involved. Aerobic respiration in all the cells of our body produces CO[sub]2[/sub]. Gaseous exchange (ie. diffusion) transfers it from our venous blood into the air in our alveoli. Ventilating the lung (ie. breathing out) expels the CO[sub]2[/sub] from our lungs.

 

[Cat_with_no_eyes]

Thanks, just needed some one to clarify this