Algonquin College Health Program Assessment (AC-HPAT) Practice Exam

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Which type of cell carries oxygen around the body?

White blood cells
Red blood cells
Platelets
Plasma cells

The correct answer is: Red blood cells

Red blood cells are the type of cell responsible for carrying oxygen around the body. These cells contain a protein called hemoglobin, which binds to oxygen in the lungs and releases it in the tissues that need it. This process is essential for maintaining the overall metabolic function of the body, as oxygen is crucial for the production of energy within cells. In contrast, white blood cells are primarily involved in the immune response, helping to defend the body against infections. Platelets play a key role in blood clotting, which is vital for preventing excessive bleeding. Plasma cells, derived from B lymphocytes, are involved in producing antibodies to fight infections, thus playing a different role in immune function. Understanding the distinct functions of these cell types is crucial in the context of human physiology and the circulatory system's role in overall health.