What is the primary purpose of COX-1?

What is the primary purpose of COX-1?

• A. Causes fever
• B. Maintains acid-base balance
• C. Metabolizes fats
• D. Protects stomach lining and regulates blood platelets

Answer: (D)

COX-1 is a constitutive enzyme that continuously makes prostaglandins to support normal bodily functions, especially protecting the stomach lining and aiding platelet function. The prostaglandins produced by COX-1 help maintain the protective mucus layer and blood flow in the gastric mucosa, while thromboxane A2 from platelets promotes clotting. Because this activity happens under normal conditions rather than only during inflammation, its primary purpose is to safeguard the stomach and regulate platelets. Fever and inflammatory symptoms are more associated with COX-2, and fatty metabolism or acid-base balance aren’t the main roles of COX-1.

COX-1 is a constitutive enzyme that continuously makes prostaglandins to support normal bodily functions, especially protecting the stomach lining and aiding platelet function. The prostaglandins produced by COX-1 help maintain the protective mucus layer and blood flow in the gastric mucosa, while thromboxane A2 from platelets promotes clotting. Because this activity happens under normal conditions rather than only during inflammation, its primary purpose is to safeguard the stomach and regulate platelets. Fever and inflammatory symptoms are more associated with COX-2, and fatty metabolism or acid-base balance aren’t the main roles of COX-1.