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dezoksy [38]
3 years ago
11

Which five statements about hemoglobin and myoglobin structure are true? Each hemoglobin molecule can bind four oxygen molecules

, and each myoglobin can bind only one oxygen molecule. Molecular oxygen binds irreversibly to Fe2+ in heme. By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent a change in the oxidation state of the iron ion. Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron ion. Heme is composed of an organic protoporphyrin component and a metal ion. Each iron ion can form six coordination bonds: One of these bonds is formed between iron and oxygen. Hemoglobin and myoglobin are heterotetramers.
Biology
1 answer:
Mandarinka [93]3 years ago
4 0

Answer:

The correct statement about the hemoglobin and myoglobin is as follows:

1. Each hemoglobin molecule can bind four oxygen molecules; each myoglobin can bind only one oxygen molecule.

3. By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent oxidation of the iron.

4. Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron atom.

5. Heme is composed of an organic protoporphyrin component and a metal atom.

6. Each iron atom can form six coordination bonds: One of these bonds is formed between iron and oxygen.

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