Oh, I stitch shirts, not study science, but this much I remember from my boy's old textbooks: some carbon dioxide just dissolves, some sticks to hemoglobin, and most becomes bicarbonate in the blood. They say it's a big percentage, nearly seventy percent as bicarbonate, *nah*? But from my life, I see it differently. When my son comes home exhausted from his college sports, breathing hard on my charpai, I think the blood must carry more than just numbers—it carries his tiredness, his effort, and a father’s worry to make ends meet for his future.
#exams#study
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