How Many Iron Atoms Are Coordinated in a Hemoglobin Molecule

question 81

Multiple Choice

How many iron atoms are coordinated in a hemoglobin molecule ?

• A) 5
• B) 4
• C) 1
• D) 2
• E) 3

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Definitions:

Arachidonic Acid

A polyunsaturated omega-6 fatty acid important for the production of eicosanoids, regulating immune and inflammatory responses.

Acyclic Carboxylic Acid

Carboxylic acids that do not contain a ring structure, typically with one or more straight or branched chain structures.

Molecular Formula

A notation that indicates the number and type of atoms in a molecule but not their structural arrangement.

Elements of Unsaturation

A measure used in organic chemistry to determine the number of π bonds and rings in a molecule.