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Questions and Answers
What is the role of partial pressure of CO2 in the transport of CO2 in the body?
What is the role of partial pressure of CO2 in the transport of CO2 in the body?
The partial pressure of CO2 determines the direction and rate of diffusion of CO2 between tissues and blood.
How is CO2 transported from tissues to the lungs?
How is CO2 transported from tissues to the lungs?
CO2 diffuses into the blood in tissues and reacts with water to form bicarbonate ions, which are then transported to the lungs.
What happens to bicarbonate ions in the lungs?
What happens to bicarbonate ions in the lungs?
In the lungs, bicarbonate ions combine with hydrogen ions to release carbon dioxide and water.
Study Notes
Transport of CO2 in the Body
- CO2 transport is dependent on the partial pressure of CO2.
- In tissues, the partial pressure of CO2 is higher than in the blood.
- CO2 diffuses from the tissues into the blood.
- In the blood, CO2 reacts with water to form bicarbonate ions.
- Bicarbonate ions are then transported to the lungs.
- In the lungs, the process is reversed.
- Bicarbonate ions combine with hydrogen ions to release CO2 and water.
- This allows the CO2 to be exhaled from the lungs.
- The partial pressure of CO2 in the lungs is lower than in the blood.
- CO2 diffuses from the blood into the lungs.
- The transportation of CO2 helps maintain the acid-base balance in the body.
- This process is a vital part of the respiratory system.
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Description
Test your knowledge on the transport of CO2 in the body with this quiz! Explore how CO2 moves between tissues and blood, and how it is converted into bicarbonate ions for transportation to the lungs.
