Question 1:
What is the value of the partial pressure of oxygen in the atmospheric pressure?
Answer:
The partial pressure of oxygen is 160 mm Hg.
What is the value of the partial pressure of oxygen in the atmospheric pressure?
Answer:
The partial pressure of oxygen is 160 mm Hg.
Question 2:
In what form is carbon dioxide transported in human blood circulatory system?
Answer:
Carbon dioxide is transported in the form of bicarbonate ion, carbonic acid and carbaminohaemoglobin.
In what form is carbon dioxide transported in human blood circulatory system?
Answer:
Carbon dioxide is transported in the form of bicarbonate ion, carbonic acid and carbaminohaemoglobin.
Question 3:
Explain how carbon dioxide is transported from the lung capillaries to the alveolus.
Answer:
• When bicarbonate ions (HCO3–) in the blood plasma reach the lung capillaries, they diffuse again into the erythrocytes.
• The bicarbonate ions combine with hydrogen ions (H+) to form carbonic acid (H2CO3).
• Carbonic acid (H2CO3) then dissociates into carbon dioxide and water.
• Carbon dioxide diffuses out from the lung capillaries into the alveoli, and is expelled during exhalation.
Explain how carbon dioxide is transported from the lung capillaries to the alveolus.
Answer:
• When bicarbonate ions (HCO3–) in the blood plasma reach the lung capillaries, they diffuse again into the erythrocytes.
• The bicarbonate ions combine with hydrogen ions (H+) to form carbonic acid (H2CO3).
• Carbonic acid (H2CO3) then dissociates into carbon dioxide and water.
• Carbon dioxide diffuses out from the lung capillaries into the alveoli, and is expelled during exhalation.
Question 4:
In what form is oxygen carried to the tissues?
Answer:
Oxygen is transported in the form of oxyhaemoglobin.
In what form is oxygen carried to the tissues?
Answer:
Oxygen is transported in the form of oxyhaemoglobin.