Which of the following statements about hemoglobin are true?
1) Oxygen molecules bind to the heme portion of hemoglobin
2) Hemoglobin can carry up to 2 oxygen molecules
3) When carbon dioxide binds to hemoglobin, a molecule called carbaminohemoglobin is formed.
O Both 1 and 2
O Both 2 and 3
O 1 only
Both 1 and 3



Answer :

Final answer:

Hemoglobin binds oxygen and forms carbaminohemoglobin when carbon dioxide binds to it.


Explanation:

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.


Learn more about Hemoglobin, Oxygen, Carbaminohemoglobin here:

https://brainly.com/question/33528822