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Question

Which type of cells have round and biconcave shape?

A
White blood cells
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B
Red blood cells
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C
Columnar epithelial cells
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D
Nerve cells
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Solution

The correct option is B Red blood cells
An erythrocyte is a cell containing large amounts of hemoglobin and specialized for oxygen transport. In mammals, erythrocytes are round and biconcave in shape.
They are devoid of nucleus and other membrane-bound organelles. They derive energy through glycolysis and serve as tiny packets of hemoglobin.
Hence the correct option is B.

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