Question

The size of Red Blood Cells (RBCs) is around :

• A. 1000 nm
• B. 2000 nm
• C. 5000 nm
• D. 9000 nm

Answer 1

Answer: (C)

5000 nm

Size of Red Blood Cells is around 6 to 8 microns.
i.e. $6-8\times {10}^{-6}$ m.
So, out of options available, 5000 nm or 5 μm lies near this range. So answer is 5000 nm.