O2/CO2 TransportFill in the blanks using the word bank to describe O2 and CO2 transport in the respiratory system. Words CAN be used more than once.Word Bank:- Enhance(s)- Inhibit- Tissues- Lungs- Reduced- Increase- Decrease- Oxyhemoglobin- Hemoglobin- Chloride Shift- Plasma- Red Blood Cell(s)- Diffusion- Carbonic Acid- Carbonic Anhydrase- Bicarbonate- Carbaminohemoglobin---Oxygen is transported from the **lungs** to the **tissues** in one of two ways: by binding to hemoglobin, creating **oxyhemoglobin** (HbO2), or by dissolving in plasma. Since oxygen has poor solubility in water, most oxygen molecules are transported via **red blood cells**. As oxygen leaves the lungs and enters the red blood cells, it binds to a **reduced** hemoglobin (HHb) molecule which consequently forms Oxyhemoglobin (HbO2) and releases a hydrogen ion (H+), which will **decrease** pH. An increase in H+ will **enhance** the unloading of oxygen from the blood to the **tissues**.Carbon dioxide is transported from the **tissues** to the **lungs** in one of three ways: dissolved in plasma, binding to hemoglobin as **carbaminohemoglobin** (HbCO2), or as **bicarbonate** ions (HCO3-) in plasma. The process of carbon dioxide converting into HCO3- occurs mostly in the **red blood cell(s)** but can occur in the plasma as well.This process begins when carbon dioxide enters the red blood cell via **diffusion** and combines with water, forming **carbonic acid** (H2CO3), which then dissociates into H+ and HCO3-. This process is quicker in the red blood cells because of **carbonic anhydrase** (H2CO3). After the bicarbonate ion is generated, it moves from the red blood cells into the **plasma**, where it is transported to the lungs. To balance the loss of HCO3-, Chloride ions (Cl-) move from the plasma to the **red blood cell(s)**. This process is called **the chloride shift** and is reversed in the lungs. The loading of

The main organs of respiratory system includes the lungs. The process of inhaling oxygen and expelling out carbon dioxide is known as respiration. Oxygen which is inhaled from outer atmosphere is transported to the tissues and carbon dioxide is expelled out from tissues . Through the respiratory process, not only oxygen is transported to tissues but also the nutrients are transported to various parts of the body and helps in removal waste products from the body.The answers are as follows:: Oxygen is transported from the lungs to the tissues in one of two ways: by binding to hemoglobin , creating oxyhemoglobin (HbO2) or by dissolving in plasma. Since oxygen has a poor solubility in water, most oxygen molecules are transported via red blood cells. As oxygen leaves the lungs and enters the red blood cells, it binds to a reduced hemoglobin (HHb) molecule which consequently forms oxyhemoglobin (HbO2) and releases a hydrogen ion (H+), which will decrease pH. An increase in H+ ions will enhance the unloading of oxygen from the blood to the tissues. Carbon dioxide is transported from the tissues to the lungs in one of three ways: dissolved in plasma, binding to hemoglobin as carbaminohemoglobin (HbCO2) or as bicarbonate (HCO3-) in plasma. The process of carbon dioxide converting into HCO3- occurs mostly in the red blood cells but can occur in the plasma as well. This process begins when the carbon dioxide enters the red blood cells via diffusion and combines with water , forming carbonic acid (H2CO3), which then dissociates into H+ and HCO3-. This process is quicker in the red blood cells because of carbonic anhydrase. After the bicarbonate ion is generated, it moves from the red blood cells into the plasma, where it is transported to the lungs. To balance the loss of HCO3-, chloride ions (Cl-) moves from the plasma to the red blood cells. This process is called chloride shift and is reversed in the lungs. The loading of carbon dioxide enhances the unloading of oxygen