Oxyhemoglobin forms during external respiration.
External respiration can be described as the exchange of gases between the blood and the lungs.
At the time of respiration, the lungs breathe in oxygen. This oxygen is exchanged and diffuses to the bloodstream through the alveoli present in the lungs. In return, carbon dioxide in the blood diffuses to the lungs for exhaling out of the body.
The oxygen travels in the bloodstream as oxyhemoglobin. Hemoglobin is a part of the red blood cells that attaches oxygen molecules to itself. When the destination site arrives, oxygen is released from the hemoglobin.
As oxyhemoglobin forms during the process of external respiration for making oxygen travel in the blood hence the correct option is external respiration.
To learn more about external respiration, click here:
https://brainly.com/question/12967228
#SPJ4
