Question

The bulk of carbon dioxide is carried chemically combined with the amino acids of hemoglobin as carbaminohemoglobin in the rbcs. the bulk of carbon dioxide is carried chemically combined with the amino acids of hemoglobin as carbaminohemoglobin in the rbcs.

a. True
b. False

Answer 1

The statement is false as carbaminohemoglobin carries only about 20 percent of carbon dioxide in the blood, with the majority being transported as bicarbonate ions created by the action of carbonic anhydrase.

Step-by-step explanation:

The statement that the bulk of carbon dioxide is carried chemically combined with the amino acids of hemoglobin as carbaminohemoglobin in the red blood cells (RBCs) is false. While some carbon dioxide is carried in this form, carbaminohemoglobin accounts for about 20 percent of carbon dioxide transport in the blood. The majority of carbon dioxide, approximately 85 percent, is transported as bicarbonate ions in the plasma. This process occurs when carbon dioxide diffuses into red blood cells and is converted by the enzyme carbonic anhydrase to carbonic acid, which then dissociates into bicarbonate and hydrogen ions. The bicarbonate ions are transported out of the red blood cells into the plasma in exchange for chloride ions, a mechanism known as the chloride shift.

Answer 2

The answer would be: as the bicarbonate ion in the plasma after first entering the red blood cells

Carbon dioxide will be changed into bicarbonate ion that released into the plasma. That is why the level of carbon dioxide will influence the pH of the blood. The process will produce hydrogen ion so higher carbon dioxide will result in acidosis. It is important to keep the carbon dioxide level at a certain point to prevent blood pH stable