What is the normal pH range of blood?

The normal pH range of blood is typically between 7.35 and 7.45, which aligns closely with the range indicated in the selected choice of 7.3 to 7.4. Maintaining this pH range is crucial for proper physiological function, as even slight deviations can affect cellular metabolism, enzyme activity, and overall homeostasis.

The correct choice reflects an understanding of the slightly alkaline nature of blood. It's vital for healthcare professionals, including those in funeral service education, to recognize that normal blood pH is tightly regulated by various physiological mechanisms, including respiration and metabolic activity, to ensure biochemical reactions proceed optimally.

Other ranges provided are either too acidic or not sufficiently aligned with the typical physiological standards for blood pH, indicating they do not represent the norm in a healthy individual. Understanding the correct pH range is essential not only in medical contexts but can also relate to post-mortem chemistry and the state of the body in funeral service education.