ASATT National Certification Exam (NCE) Practice Exam 2025 – All-in-One Study Guide for Exam Success!

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What role does oxyhemoglobin play in the body?

Transporting carbon dioxide

Providing energy to cells

Transporting oxygen to tissues

Oxyhemoglobin plays a crucial role in the body by transporting oxygen to tissues. Hemoglobin, a protein found in red blood cells, binds to oxygen in the lungs and forms oxyhemoglobin. This process is essential for ensuring that oxygen is carried efficiently from the lungs through the bloodstream to tissues and organs, where it is needed for cellular respiration and metabolic processes.

The significance of this function cannot be overstated, as cells require oxygen to produce energy. In aerobic metabolism, oxygen is used to convert glucose into adenosine triphosphate (ATP), the energy currency of the cell. Without adequate oxygen supply facilitated by oxyhemoglobin, cells would struggle to produce the energy necessary for their functions, leading to tissue hypoxia and various health issues.

While the transportation of carbon dioxide is also vital for maintaining respiratory function, it is primarily the role of deoxyhemoglobin, not oxyhemoglobin. Similarly, energy production is a process reliant on oxygen provided by oxyhemoglobin but is not a direct function of it. Blood pH regulation, while important, is primarily managed by bicarbonate and carbon dioxide levels rather than by oxyhemoglobin itself. Hence, the primary and correct role of oxyhemoglobin in the body is its function in

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Regulating blood pH levels

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