Bulk of carbon dioxide (CO_2) released from body tissues into the blood is present as: - Biology MCQ Biology | ExamTest.live | ExamTest.live

Home Tests Search Rank Profile

mediumMCQBiologyBiology

1 mark

Bulk of carbon dioxide (CO_{2}) released from body tissues into the blood is present as:

A $70% carbamino-haemoglobin and 30% as bicarbonate.$
B $Carbamino-haemoglobin in RBCs .$
C $Bicarbonate in blood plasma and RBCs .$
D $Free CO_{2} in blood plasma.$

Solution & Step-by-step Explanation

Approximately 70% of CO_{2} is transported as bicarbonate (HCO_{3}^{-}) ions in the plasma and RBCs . About 20 - 25% is carried as carbamino-haemoglobin, and 7% is dissolved in plasma.

Practice this question

Try it yourself before checking the explanation above.

Bulk of carbon dioxide (CO_{2}) released from body tissues into the blood is present as:

A

70% carbamino-haemoglobin and 30% as bicarbonate.

B

Carbamino-haemoglobin in RBCs .

C

Bicarbonate in blood plasma and RBCs .

D

Free CO_{2} in blood plasma.

Share This Question

Human Physiology Respiration

Related Questions

The main organelle involved in modification and routing of newly synthesized proteins to their destinations is :

There are two opposing views about origin of Modern man. According to one view Homo erectus in Asia were the ancestors of modern man. A study of variations of DNA however suggested African origin of Modern man. What kind of observation on DNA variation could suggest this ?

The world's highly prized wool yielding 'Pashmina' breed is :

Grey crescent is the area :

Photosynthesis in C4 plants is relatively less limited by atmospheric CO2 levels because :

There exists a close association between the alga and the fungus within a lichen. The fungus :

Ready for a Full Test?

Practice with timed mock tests and track your performance across Biology.

Browse Tests Leaderboard

Discussion