Which buffer system is most important in maintaining the pH of mammalian blood?
Correct answer: B. Bicarbonate buffer
- A. Phosphate buffer
- B. Bicarbonate buffer
- C. Protein-free buffer
- D. Ammonium buffer
Explanation
The carbonic acid and bicarbonate system is the major extracellular buffer of blood, and its components are regulated by the lungs and kidneys. Phosphate and protein buffers are also important, but they contribute less to the total buffering capacity of plasma.
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Covers the gross and microscopic structure of domestic animals, including bones, joints, muscles, organs, blood vessels and nerves. It explains how the respiratory, cardiovascular, digestive, urinary, nervous, endocrine and reproductive systems function, with attention to species differences and the relationship between anatomical structure and physiological processes.
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