NEET Zoology Question (2026) — Solution

Step-by-step solution

Blood coagulates or clots in response to an injury or trauma to prevent excessive loss of blood from the body. A blood clot or coagulum is formed mainly of a network of threads called fibrins in which dead and damaged formed elements of blood are trapped. Fibrins are formed by the conversion of inactive fibrinogens present in the plasma by the enzyme thrombin. Therefore, the statement that fibrinogen is produced from fibrin is incorrect. Answer: Fibrinogen is produced from fibrin