Question

Which of the following blood cells plays a role in defense mechanism

• A. W.B.C
• B. Platelets
• C. R.B.C
• D. None of these

Answer 1

The correct option is A

W.B.C

The correct option is A

Blood is a liquid connective tissue made up of blood plasma in which free-floating cells are called blood corpuscles. Blood plasma contains 90% water and 10% proteins. Blood corpuscles include

1. W.B.C - large-sized nucleated cells which help in defense mechanism.
2. R.B.C - small, biconcave, disc-shaped non-nucleated cells which help in the transport of oxygen.
3. Platelets - are nonnucleated, a fragment of giant cells which helps in blood clotting

Conclusion: WBC plays a major role in the defense mechanism of the body