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Questions and Answers
Red blood cells have a nucleus and organelles.
False
The shape of a red blood cell is a spherical structure.
False
The average life span of a red blood cell is 60 days.
False
Hemoglobin occupies around 25% of the corpuscular volume of a red blood cell.
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The cytoskeleton of a red blood cell is composed of microtubules and intermediate filaments.
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The biconcave shape of RBCs increases the surface area by 40-50% more than if they had a spherical shape.
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The average life span of a Red Blood Corpuscle (RBC) is 100 days.
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The absence of a nucleus in RBCs allows for more space in the cytoplasm for carrying hemoglobin.
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The concentration of hemoglobin at the center of the cytoplasm facilitates its binding to oxygen and carbon dioxide.
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The average RBC count in males is 4.5-5 million/mm3.
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The structure of the cytoskeleton helps the RBCs to be stretched through the narrowest blood capillaries without being damaged.
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Red Blood Corpuscles are responsible for transporting CO2 and O2 to and from the tissues of the body.
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The selective permeability of the cell membrane to oxygen and carbon dioxide reduces their diffusion rates during gas exchange.
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The diameter of RBCs measures about 10 to 12 micrometers in diameter.
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Erythrocytes contain insoluble enzymes that are responsible for glycolysis.
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Aged RBCs are destroyed by macrophages in the liver, spleen, and bone marrow due to changes in their cytoplasmic composition.
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RBCs have a nucleus.
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