Hemoglobin binds oxygen and forms carbaminohemoglobin when carbon dioxide binds to it.
Hemoglobin is a protein found in red blood cells that binds to oxygen. Each hemoglobin molecule can carry up to four oxygen molecules, not just two as mentioned in option 2. When carbon dioxide binds to hemoglobin, it forms carbaminohemoglobin. Therefore, the correct statements are 1 only.
https://brainly.com/question/33528822