What is the pH range of human blood?

What is the pH range of human blood?

• A. 6.5 to 7.0
• B. 7.0 to 7.4
• C. 7.35 to 7.45
• D. 7.5 to 8.0

Answer: (C)

The pH range of human blood is typically between 7.35 and 7.45, making option C the correct answer. This narrow range is crucial for various physiological processes within the body. Maintaining blood pH within these limits is essential for the proper functioning of enzymes and other biochemical processes. If the pH falls below 7.35, it can indicate acidosis, while a pH above 7.45 can suggest alkalosis, both of which can have serious health implications. Blood pH is tightly regulated by several mechanisms, including buffer systems, respiratory control of carbon dioxide levels, and renal regulation of bicarbonate ions. These regulatory systems work collaboratively to ensure that any deviations from the normal range are corrected promptly, maintaining homeostasis in the body. Understanding the importance of this pH range is crucial in physiology, as it underlines how the body responds to metabolic changes and maintains stability in the internal environment.

The pH range of human blood is typically between 7.35 and 7.45, making option C the correct answer. This narrow range is crucial for various physiological processes within the body. Maintaining blood pH within these limits is essential for the proper functioning of enzymes and other biochemical processes. If the pH falls below 7.35, it can indicate acidosis, while a pH above 7.45 can suggest alkalosis, both of which can have serious health implications.

Blood pH is tightly regulated by several mechanisms, including buffer systems, respiratory control of carbon dioxide levels, and renal regulation of bicarbonate ions. These regulatory systems work collaboratively to ensure that any deviations from the normal range are corrected promptly, maintaining homeostasis in the body.

Understanding the importance of this pH range is crucial in physiology, as it underlines how the body responds to metabolic changes and maintains stability in the internal environment.