Which of the following blood proteins is critically essential for blood clotting and is converted into insoluble fibrin during coagulation?

💡 Solution & Explanation

Fibrinogen is a soluble plasma protein synthesized by the liver that plays a critical role in blood coagulation by converting into insoluble fibrin threads under the enzymatic action of thrombin. Albumin primarily maintains osmotic pressure, while hemoglobin transports oxygen inside red blood cells.