The type of blood cells that have biconcave disc like shape are:
Correct answer: D. Red blood cells
- A. Lymphocytes
- B. Platelets
- C. Monocytes
- D. Red blood cells
Explanation
Option D is correct.Yes, red blood cells (RBCs) are the only type of blood cells that have a biconcave disc shape. This shape gives RBCs a large surface area to volume ratio, which is important for their role in carrying oxygen to the tissues.The biconcave disc shape of RBCs is also important for their ability to pass through the small capillaries in the tissues. The biconcave shape allows RBCs to flex and squeeze through the capillaries, even when they are tightly packed together. RBCs are produced in the bone marrow. They are anucleate, which means they do not have a nucleus. The absence of a nucleus allows RBCs to have a larger surface area for carrying oxygen. RBCs live for about 120 days. After that time, they are broken down in the spleen and liver. The iron from the hemoglobin in RBCs is recycled to make new RBCs.
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