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The life span of RBC and WBC are respectively
  • a)
    90 days and 120 days
  • b)
    60 days and 90 days
  • c)
    90 days and 60 days
  • d)
    120 days and 90 days
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The life span of RBC and WBC are respectivelya)90 days and 120 daysb)6...
Life cycle.
Human red blood cells are produced through a process named erythropoiesis, developing from committed stem cells to mature red blood cells in about 7 days. When matured, in a healthy individual these cells live in blood circulation for about 100 to 120 days (and 80 to 90 days in a full term infant).
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Most Upvoted Answer
The life span of RBC and WBC are respectivelya)90 days and 120 daysb)6...
Life span of RBC and WBC:
The life span of red blood cells (RBC) and white blood cells (WBC) varies significantly, with RBCs living much longer than WBCs.

RBC:
- The life span of a red blood cell is around 120 days.
- RBCs are constantly being produced by the bone marrow to replace the old cells that are removed from circulation by the spleen and liver.
- After about 120 days, RBCs become old and are removed from circulation, making room for new RBCs.

WBC:
- The life span of a white blood cell can range from 6 to 20 days, depending on the type of WBC.
- White blood cells play a crucial role in the body's immune response and defense against infections.
- Different types of WBCs have different life spans, with some living only a few days while others can live for a couple of weeks.

Comparison:
- RBCs have a longer life span compared to WBCs because RBCs do not have a nucleus and other organelles, which enables them to live longer.
- WBCs, on the other hand, are more complex cells with a nucleus and organelles, which contribute to their shorter life span.
In conclusion, the life span of RBCs is around 120 days, while the life span of WBCs can range from 6 to 20 days, depending on the type of white blood cell.
Community Answer
The life span of RBC and WBC are respectivelya)90 days and 120 daysb)6...
The life span of red bloodcells (RBC) and white blood cells (WBC) are respectively 120 days and 90 days.
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The life span of RBC and WBC are respectivelya)90 days and 120 daysb)60 days and 90 daysc)90 days and 60 daysd)120 days and 90 daysCorrect answer is option 'D'. Can you explain this answer?
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