Practice Questions

TLS Online TPP Program

#Question id: 11092

Which statement is the most accurate definition of external respiration?

#7. System Physiology – Animal

Bulk flow (convection) of air or water to and from the gas-exchange membrane.
The process by which O2 is transported to the gas-exchange membrane from the environmental medium and by which CO2 is transported away from the membrane into the environmental medium.
The process by which CO2 is transported to the gas-exchange membrane from the environmental medium and O2 is transported away from the membrane into the environmental medium.
Diffusion of O2 and CO2 across the gas exchange membrane.