Final answer:
The production of ATP by oxidative phosphorylation is not included in external respiration processes. External respiration involves gas exchange in the lungs and the transport of gases by the blood, while ATP production occurs inside cells during cellular respiration.
Step-by-step explanation:
External respiration processes do not include the production of ATP by oxidative phosphorylation. This is because external respiration refers to the exchange of gases—specifically, the intake of O2 and the release of CO2—between the ambient environment and the bloodstream at the lung alveoli, as well as the transport of these gases by the blood to and from the tissues.
Oxygen, as a reactant, is essential for the oxidative stages of cellular respiration within cells, which generate energy in the form of adenosine triphosphate (ATP). However, the production of ATP itself takes place inside cells during the metabolic process known as cellular respiration and not during the external respiratory process. Additionally, oxygen and carbon dioxide transport in the blood is facilitated mainly by erythrocytes and hemoglobin, with the exchange of O2 and CO2 occurring at both the level of the lungs and the tissues.