Which Statement Is False About the Heme Group

question 9

Multiple Choice

Which statement is false about the heme group?

• A) When oxygen binds to heme, the iron ion is oxidized from Fe²⁺ to Fe³⁺.
• B) If exposed to air, a free heme group not associated with hemoglobin) is readily oxidized converting Fe²⁺ to Fe³⁺ and can no longer bind oxygen.
• C) The heme group is tightly, but non-covalently, held in myoglobin molecule.
• D) The chemical structure of the heme groups in myoglobin and hemoglobin are identical.

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Definitions:

Crop Production

The process of growing crops for food, fiber, biofuel, medicinal plants, or other uses.

Consumer Incomes

The total earnings of consumers from all sources, including wages, investments, and government benefits, which influence their buying power and demand for goods and services.

Acreage Allotment Programs

A policy mechanism aimed at controlling the production of certain crops by allocating a specific acreage for their cultivation to manage supply and stabilize or improve prices.

Farmland

Arable land used for the purpose of growing crops and rearing animals.