The pH of human blood is maintained between:
Correct answer: A. 7.35 to 7.45
- A. 7.35 to 7.45
- B. 7.55 to 7.65
- C. 7.00 to 7.25
- D. 7.85 to 7.95
Explanation
Blood is normally slightly basic, with a normal pH range of about 7.35 to 7.45. Usually, the body maintains the pH of blood close to 7.40. This is because most enzymes present in the blood have their optimum pH in this range.
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