The protein that carries oxygen in our blood is known as hemoglobin.
The protein that carries oxygen in our blood is called hemoglobin. Hemoglobin is found in red blood cells and is responsible for binding to oxygen and transporting it throughout the body. If you are wondering how I determined the correct answer, it's important to understand that answering this question required knowledge in the field of biology. Hemoglobin is a well-known protein that plays a crucial role in oxygen transportation, so simply having that background knowledge and understanding was enough to provide the correct response.
