Question

The average life span of blood platelets is ________ days.

• A. 3–4
• B. 1–3
• C. 11–15
• D. 5–10

Hint:

{RBCs ≈ 120 days}, {Platelets ≈ 5–10 days}.

Answer 1

The Correct Option is D

Step 1: Understanding platelets.
Platelets, also known as thrombocytes, are cell fragments involved in blood clotting and prevention of blood loss.

Step 2: Life span of platelets.
Platelets circulate in the blood for about 5–10 days before being destroyed mainly in the spleen.

Step 3: Conclusion.
Hence, the average life span of blood platelets is 5–10 days.