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List the mechanisms for transporting oxygen and carbon dioxide in the blood. (include \%'s)

Ask by Hodges Willis. in the United States
Mar 10,2025

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- **Oxygen Transport:** About 98.5% is carried by hemoglobin in red blood cells, and 1.5% is dissolved in plasma. - **Carbon Dioxide Transport:** Approximately 70% is transported as bicarbonate ions, 20% is bound to hemoglobin, and 10% is dissolved in plasma.

Solution

- **Oxygen Transport:** - \( \approx 98.5\% \) of oxygen is carried bound to hemoglobin within red blood cells. - \( \approx 1.5\% \) of oxygen is transported dissolved directly in the plasma. - **Carbon Dioxide Transport:** - \( \approx 70\% \) of carbon dioxide is carried in the form of bicarbonate ions \(\left(\text{HCO}_3^-\right)\). - \( \approx 20\% \) of carbon dioxide is transported bound to hemoglobin (forming carbaminohemoglobin). - \( \approx 10\% \) of carbon dioxide is carried dissolved directly in the plasma.

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Oxygen is primarily transported in two ways in the blood: around 98.5% binds to hemoglobin within red blood cells, forming oxyhemoglobin, while the remaining 1.5% is dissolved in plasma. When it comes to carbon dioxide, about 70% is converted to bicarbonate ions, allowing for efficient transport, while around 20-23% binds to hemoglobin forming carbamino compounds, and roughly 7-10% is dissolved directly in the plasma. This cooperative effort ensures our bodies get the oxygen they need while efficiently removing carbon dioxide! Did you know that hemoglobin isn't just a one-trick pony? It plays a significant role in regulating blood pH as well! When carbon dioxide levels rise, it reacts with water to form carbonic acid, which can influence how hemoglobin releases oxygen more readily. This "Bohr effect" is essential for keeping our tissues well-oxygenated, especially during exercise when carbon dioxide production increases!

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