Question

Which of the following processes is NOT properly matched with its description? Group of answer choices pulmonary ventilation: bulk movement of gases internal respiration: O2 diffuses out of the blood external respiration: CO2 diffuses into the blood stream transport of respiratory gases: hemoglobin binds O2

Answer 1

External respiration : CO2 diffuses into the blood stream.

Step-by-step explanation:

Respiration may be defined as the process of exchange of gases between the external atmosphere, alveoli and the internal tissue. Two main important types of respiration are external respiration and internal respiration.

The internal respiration explains the diffusion and exchange of gases between the tissue. The diffusion of the carbon dioxide in the blood stream is not the external respiration because in external respiration the gases exchange occur in the lungs across the respiratory membrane. The carbon dioxide diffusion in the blood stream is internal respiration.

Thus, the correct answer is option (3).