In a normal human body, the total number of red blood cells
Question
In a normal human body, the total number of red blood cells is
Options
Option A
15 trillion
Option B
20 trillion
Option C
25 trillion
Option D
30 trillion
Correct Option
Option D
Explanation
Adult humans have roughly 20–30 trillion red blood cells at any given time, constituting approximately 70% all cells by number. ... Hemoglobin is responsible for the transport of more than 98% of the oxygen in the body (the remaining oxygen is carried dissolved in the blood plasma).
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