Red Blood Cells
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Questions and Answers

Where are red blood cells formed?

inside the bone marrow

What is the lifespan of a red blood cell?

about 4 months

What is the approximate diameter of a red blood cell (RBC)?

7.5 micro metre

What is the name of the protein pigment found in the cytoplasm of RBC?

<p>haemoglobin</p> Signup and view all the answers

What is the approximate number of RBCs per cubic millimeter of blood in the human body?

<p>10 million (A)</p> Signup and view all the answers

How many molecules of oxygen does one haemoglobin molecule pick up from the lungs?

<p>four molecules of oxygen</p> Signup and view all the answers

Where are RBCs destroyed in the human body?

<p>Spleen and liver (D)</p> Signup and view all the answers

What is the shape of RBCs when viewed from the side?

<p>Biconcave (C)</p> Signup and view all the answers

What is the role of haemoglobin in RBCs?

<p>Transporting oxygen (A)</p> Signup and view all the answers

What is the function of carbonic anhydrase enzyme in RBCs?

<p>Mopping up carbon dioxide (B)</p> Signup and view all the answers

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