Question

Life span of blood platelets in mammals is about _______.

• A. 3 days
• B. 8 days
• C. 1 month
• D. 20 days

Answer 1

The correct option is B 8 days

Platelets are the smallest of the three major types of blood cells. Platelets are anuclear cytoplasmic fragments essential for blood clotting and wound healing. Blood platelets begin their lives as hematocytoblasts, or stem cells. Blood platelets have a life span of 8-10 days, at the end of which they undergo programmed cell death or apoptosis.

Hence, answer is '8 days'.