Life span of Red Blood Cells_____?

Correct answer: B. 120 Days

  • A. 150 Days
  • B. 120 Days
  • C. 80 Days
  • D. 100 Days

Explanation

Red blood cells circulate for about 120 days before ageing changes their membranes and they are removed mainly by the spleen and liver. Students may choose 150 days because RBCs survive for several months, but the standard average lifespan is 120 days.

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