In blood, platelets are required

Solution

Platelets (thrombocytes) are essential for initiating blood clotting. They help form a plug at the site of injury by releasing clotting factors that lead to the formation of fibrin threads. Platelets do not transport gases or degrade urea. Information Booster:      

1. Platelets are cell fragments derived from megakaryocytes.
2. Normal platelet count is 150,000–450,000 per microliter of blood.
3. Platelets play a role in wound healing.
4. Deficiency of platelets can lead to excessive bleeding (thrombocytopenia).
5. Overproduction can cause unwanted clots (thrombosis).