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Question

Complete the analogy. Platelets : Clotting :: White Blood Cells : __________.

This question was previously asked in
RRB Group D 2025 Question Paper (18-Aug-2026) (Shift 1)
The correct answer is

Fighting Inflammation

The analogy pairs each type of blood cell with its main physiological role. Platelets (thrombocytes) trigger clot formation at wounds to stop bleeding.

White blood cells (leucocytes) are the immune system's defenders; they engulf pathogens, release cytokines, and drive the inflammatory response that fights infection and injury.

Oxygen transport is carried out by red blood cells (via haemoglobin), joints are connected by ligaments and cartilage, and minerals such as calcium are stored in bones, not by WBCs.

Hence, the missing role is fighting inflammation.

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