How do biological fluids maintain a relatively constant ph?
Tuesday, January 17, 2023
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Question: How do biological fluids maintain a relatively constant ph?
Biological fluids maintain a relatively constant pH through several chemical and physiological mechanisms. The buffering capacity of body fluids, such as saliva and blood, is crucial for maintaining a steady state pH. This buffering is based on the presence of bicarbonates and phosphate ions, which are able to absorb excess hydrogen ions released in the body. Additionally, organ systems such as the kidneys and lungs help to maintain the body's pH balance by excreting acidic substances, such as CO2, and absorb bicarbonates and other bases into the bloodstream.
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