Correct option is C
The correct answer is: (c) Forming blood clots to stop bleeding
Explanation:
• Thrombocytes (platelets) help in blood clotting.
• They gather at the site of injury and form a plug to stop bleeding.
• Platelets release chemicals that help in coagulation and wound healing.
Information Booster:
• Normal platelet count: 1.5–4 lakh per mm³ of blood.
• Lifespan of platelets: 7–10 days.
• Produced in bone marrow from megakaryocytes.
• Vitamin K is essential for proper blood clotting.
Additional Knowledge:
• Carrying oxygen – Done by red blood cells (haemoglobin).
• Transporting nutrients – Done mainly by plasma.
• Immune response – Initiated by white blood cells, not platelets.