Multiple choice general knowledge science & technology

The blood is red in colour due to presence of ........ pigment?

  1. red pigment

  2. white pigment

  3. hemoglobin pigment

  4. chlorophill pigment
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Blood appears red due to hemoglobin, an iron-containing protein in red blood cells that binds oxygen. Hemoglobin's iron atoms reflect red light, giving blood its characteristic color. The other options are incorrect: red and white pigments are nonspecific, while chlorophyll is the green pigment in plants, not found in blood.

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