Question

How is co2 taken up from tissues and transported to the lungs?

Answer 1

As our cells produce carbon dioxide, it diffuses into the blood, where it is transported to the lungs for expiration. Some of the carbon dioxide is transported dissolved in the plasma.  As blood flows through the tissues, carbon dioxide diffuses into red blood cells, where it is converted into bicarbonate.

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.Red blood cells also play an important role in transport of carbon dioxide, a waste product, from the tissues back to the lungs. Some of the carbon dioxide binds directly to hemoglobin, and red blood cells also carry an enzyme that converts carbon dioxide into bicarbonate.

Answer 2

Answer:

Explained

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 hemoglobin. Approximately 75% of carbon dioxide is transport in the red blood cell and 25% in the plasma. Red blood cells also play an important role in transport of carbon dioxide, a waste product, from the tissues back to the lungs. Some of the carbon dioxide binds directly to hemoglobin, and red blood cells also carry an enzyme that converts carbon dioxide into bicarbonate.