Analyze the effects of high CO2 partial pressure in tissues versus low CO2 partial pressure in lungs on hemoglobin carbonation.

• A. High CO2 partial pressure in tissues leads to hemoglobin carbonation and oxygen release, while low CO2 partial pressure in lungs leads to decarbonation and oxygen binding.
• B. Both high and low CO2 partial pressures lead to hemoglobin carbonation and oxygen release.
• C. High CO2 partial pressure in tissues leads to hemoglobin decarbonation and oxygen binding, while low CO2 partial pressure in lungs leads to carbonation and oxygen release.
• D. Both high and low CO2 partial pressures lead to hemoglobin decarbonation and oxygen binding.

Answer: (A)