Question

Smallest human cells are

• A. Leucocytes
• B. Erythrocytes
• C. Liver cells
• D. Sperms

Answer 1

The correct option is B Erythrocytes

The erythrocytes are also known as RBC. It is considered as smallest human cell in terms of size and area with a diameter of approximately 6.2–8.2 µm and a thickness at the thickest point of 2–2.5 µm. It forms the important cellular component of the blood and helps to carry gaseous oxygen. It has respiratory pigment known as haemoglobin which has iron as important component with globulin proteins.

So, the correct answer is option B.