Biology
NULL
Medium
Question
The normal pH of human blood is ____________?
A
6.4
B
7
C
7.4
✓ Official correct answer
D
7.5
Community credibility
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A
6.4
No member explanations yet for this option.
B
7
No member explanations yet for this option.
C
7.4
No member explanations yet for this option.
D
7.5
No member explanations yet for this option.
Explanation
The normal pH of human blood is tightly maintained at about 7.4, slightly alkaline, which is essential for proper enzyme function and cellular processes.