Multiple choice general knowledge

From where does the blood get its colour from?

  1. Haemoglobin

  2. Plasma

  3. Platelets

  4. Capillaries
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A Correct answer
Explanation

Blood gets its characteristic red color from hemoglobin, an iron-containing protein found in red blood cells. When hemoglobin binds with oxygen, it turns bright red; when it releases oxygen, it becomes darker red. Plasma itself is actually a pale yellow color.

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