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Name: Helen
Status: Student
Age: 14
Location: N/A
Country: N/A
Date: N/A
Question:
Why is the levels of pH in human subject different at various hours of the day?


Replies:
The pH of the arterial blood and most extra-cellular fluids of the body varies very little from its normal value of about 7.4. Very small changes of .1 to .2 are serious!

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