On Which Portion of the Hemoglobin Molecule Does Oxygen Bind

question 3

Multiple Choice

On which portion of the hemoglobin molecule does oxygen bind?

• A)protein chain
• B)cholesterol side chains
• C)iron in the cytoplasm
• D)heme group
• E)nuclear side chains

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Definitions:

Coronary Artery

One of two arteries that arise from the base of the aorta and carry blood to the muscle of the heart.

Abdominal Aorta

The portion of the aorta that passes through the abdomen, supplying oxygenated blood to the abdominal and pelvic organs and the legs.

Common Iliac

Refers to the large artery that divides into the internal and external iliac arteries, supplying blood to the pelvic region and legs.

Inferior Mesenteric

Refers to the inferior mesenteric artery that supplies blood to the lower portions of the abdomen, including parts of the large intestine.