How Many Oxygen Molecules May Bind to a Single Molecule

question 83

Multiple Choice

How many oxygen molecules may bind to a single molecule of hemoglobin?

• A)2
• B)4
• C)6
• D)8
• E)16

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Definitions:

Gas Exchange

Gas exchange is the biological process through which organisms exchange oxygen and carbon dioxide with their surroundings, critical for respiration.

Diffusion

The passive movement of molecules or particles from an area of higher concentration to an area of lower concentration, a process fundamental to many biological systems.

Bulk Flow

The movement of fluid and its constituents in one direction, driven by pressure, gravity, or another external force, commonly observed in bodily functions and ecosystems.

Exocytosis

The process by which cells release substances to the extracellular environment by fusing vesicles with the plasma membrane.