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Q: What is the function of RBC in the human body?
  • A. To provide oxygen to the body cells
  • B. To extract carbon dioxide from the body cells
  • C. To remove nitrogenous wastes in dissolved form
  • D. To provide digested food to the body cells
Correct Answer: Option A - Red blood cells are responsible for transporting oxygen from lungs to body’s tissues. Our tissues produce energy with the oxygen and release a waste, identified as carbon dioxide. Our red blood cells take the carbon dioxide (CO₂ ) waste to lungs for being exhaled.
A. Red blood cells are responsible for transporting oxygen from lungs to body’s tissues. Our tissues produce energy with the oxygen and release a waste, identified as carbon dioxide. Our red blood cells take the carbon dioxide (CO₂ ) waste to lungs for being exhaled.

Explanations:

Red blood cells are responsible for transporting oxygen from lungs to body’s tissues. Our tissues produce energy with the oxygen and release a waste, identified as carbon dioxide. Our red blood cells take the carbon dioxide (CO₂ ) waste to lungs for being exhaled.