The constant pH of body fluid is maintained by buffer salts like

Potassium phosphates

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Sodium phosphates

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Adenosine monophosphate

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Sodium and potassium phosphates

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Solution

The correct option is D Sodium and potassium phosphates
If the pH of the body gets too low (below 7.4), a condition known as acidosis results. This can be very serious, because many of the chemical reactions that occur in the body, especially those involving proteins, are pH-dependent. Ideally, the pH of the blood should be maintained at 7.4. If the pH drops below 6.8 or rises above 7.8, death may occur. Fortunately, we have buffers in the blood to protect against large changes in pH. The constant pH of body fluid is maintained by buffer salts like sodium and potassium phosphates.

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