Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Read the following statements regarding the transport of respiratory gases and select the correct option:
A
Approximately 
of oxygen is transported by red blood cells in the form of bicarbonate ions, while the rest is dissolved in plasma.
Only Statement B and C are correct
of oxygen is transported by red blood cells in the form of bicarbonate ions, while the rest is dissolved in plasma. Only Statement B and C are correct
B
Carbon dioxide is primarily transported in the blood as bicarbonate ions formed in RBCs, which then diffuse into plasma.
Only Statement A and D are correct
Only Statement A and D are correct
C
Around 
of carbon dioxide binds to haemoglobin forming carbaminohaemoglobin for transport in the blood.
Only Statement B, C, and D are correct
of carbon dioxide binds to haemoglobin forming carbaminohaemoglobin for transport in the blood. Only Statement B, C, and D are correct
D
The proportion of oxygen transported in the dissolved form in plasma is greater than that of carbon dioxide.
Only Statement A and C are correct
Only Statement A and C are correct
Text Solution
Verified by ExpertsThe correct answer is:
A
• 
of 
is transported by RBCs bound to hemoglobin, not as bicarbonate ions.
• Only 
of 
is transported in dissolved form, while 
of 
is transported in dissolved state, so 
has a higher dissolved proportion.
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