Question

Short / long answer type questions.
Describe the various ways by which carbon dioxide is transported by the blood from the tissues to the alveoli.

Answer 1

Carbon-dioxide is transported in 3 processes:

1. About 5 to 8 percent of carbon dioxide is transported by dissolving in the blood plasma.

2. Carbon-dioxide bind to haemoglobin to form carbaminohaemoglobin. Haemoglobin is a blood pigment found in red blood cell that helps in transport of oxygen and carbon dioxide in the blood.

3. Most of the carbon-dioxide (70-75 percent) is transported in the form of bicarbonate ions.