CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
246
You visited us 246 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following statements is incorrect about the transport of gases?


A

About 98% of O2 is transported by RBCs in the blood.

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

About 3% of O2 is carried in dissolved state in the plasma.

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

About 70% of CO2 is carried in dissolved state in the plasma.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D

About 20-25% of CO2 is transported by RBCs.

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C

About 70% of CO2 is carried in dissolved state in the plasma.


There are 3 ways in which carbon dioxide is transported in the blood. About 10% of carbon dioxide is transported in the dissolved state in the plasma.
Approximately 30% of carbon dioxide is transported bound to haemoglobin. The majority of carbon dioxide, that is, around 60%, is transported as bicarbonate. Carbon dioxide enters red blood cells in the tissue capillaries where it combines with water to form carbonic acid (H2CO3). This reaction is catalysed by the enzyme carbonic anhydrase, which is found in the red blood cells. Carbonic acid then dissociates to form bicarbonate ions (HCO3) and hydrogen ions (H+). In the case of oxygen, about 98% is transported as bound to haemoglobin, while only 2% gets transported in the dissolved state in blood plasma. Thus, option C is the wrong statement here.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Exchange of Gases
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon