Question

How carbon di oxide is transported in blood?

Answer 1

Explanation:

Carbon dioxide is transported in the blood from the tissue to the lungs in three ways:1 (i) dissolved in solution; (ii) buffered with water as carbonic acid; (iii) bound to proteins, particularly haemoglobin. Approximately 75% of carbon dioxide is transport in the red blood cell and 25% in the plasma.

Answer 2

Transportation of CO2 in blood:

• CO2 is transported in 3 forms

• 5% to 7% of CO2 directly dissolve is plasma.

• 23% of CO2 is transported as carbaminohaemoglobin.

• Carbon-di-oxide is carried by haemoglobin as carbaminohaemoglobin.

• The binding is facilitated by partial pressure of CO2, and pO2.

• The binding is more when pCO2 is high and pO2 is low.

• 70% to 72% of carbon-di-oxide is transported in the form of bi-carbonates

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Knowledge cell:

• Hypercapnoea is the state of increased CO2 concentration in blood.

• Acapnia is the stoppage of breathing due to very low concentration of carbon-di-oxide in blood

• Hypoxia is the condition when O2 becomes deficient in body tissue.