Carbon dioxide is carried in the bloodstream primarily as bicarbonate ion (HCO3-). Here's the step by step process:

1. Carbon dioxide (CO2) is produced as a waste product in cells during cellular respiration, where glucose is broken down to produce energy.

2. This CO2 diffuses out of the cells and into the blood, where it is picked up by red blood cells.

3. Inside the red blood cells, an enzyme called carbonic anhydrase catalyzes a reaction between CO2 and water (H2O) to form carbonic acid (H2CO3).

4. Carbonic acid is unstable in the bloodstream and quickly dissociates to form a bicarbonate ion (HCO3-) and a hydrogen ion (H+).

5. The bicarbonate ion is then transported in the plasma of the blood to the lungs. Here, the process is reversed: bicarbonate and hydrogen ions combine to form carbonic acid, which then splits to form CO2 and water. The CO2 is exhaled.

So, in summary, CO2 is carried in the bloodstream primarily as a bicarbonate ion.

Question

Carbon dioxide is carried in the bloodstream primarily as bicarbonate ion (HCO3-). Here's the step by step process:

1. Carbon dioxide (CO2) is produced as a waste product in cells during cellular respiration, where glucose is broken down to produce energy.

2. This CO2 diffuses out of the cells and into the blood, where it is picked up by red blood cells.

3. Inside the red blood cells, an enzyme called carbonic anhydrase catalyzes a reaction between CO2 and water (H2O) to form carbonic acid (H2CO3).

4. Carbonic acid is unstable in the bloodstream and quickly dissociates to form a bicarbonate ion (HCO3-) and a hydrogen ion (H+).

5. The bicarbonate ion is then transported in the plasma of the blood to the lungs. Here, the process is reversed: bicarbonate and hydrogen ions combine to form carbonic acid, which then splits to form CO2 and water. The CO2 is exhaled.

So, in summary, CO2 is carried in the bloodstream primarily as a bicarbonate ion.

Knowee AI · Accepted Answer

Carbon dioxide is carried in the bloodstream primarily as bicarbonate ion (HCO3-). Here's the step by step process:

1. Carbon dioxide (CO2) is produced as a waste product in cells during cellular respiration, where glucose is broken down to produce energy.

2. This CO2 diffuses out of the cells and into the blood, where it is picked up by red blood cells.

3. Inside the red blood cells, an enzyme called carbonic anhydrase catalyzes a reaction between CO2 and water (H2O) to form carbonic acid (H2CO3).

4. Carbonic acid is unstable in the bloodstream and quickly dissociates to form a bicarbonate ion (HCO3-) and a hydrogen ion (H+).

5. The bicarbonate ion is then transported in the plasma of the blood to the lungs. Here, the process is reversed: bicarbonate and hydrogen ions combine to form carbonic acid, which then splits to form CO2 and water. The CO2 is exhaled.

So, in summary, CO2 is carried in the bloodstream primarily as a bicarbonate ion.

Carbon dioxide is carried in the bloodstream as a ion.

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