A

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Q. Most of the red, blue and purple colours of plants are due to a pigment called

  • (A) anthocyanin
  • (B) carotene
  • (C) chlorophyll
  • (D) xanthophylls
  • Correct Answer - Option(A)
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Explanation by: Admin

Explanation:

  • Anthocyanins are water-soluble pigments responsible for red, blue, and purple colors in plants.
  • They are found in the vacuoles of plant cells and belong to the flavonoid group.
  • The color variation depends on the pH of the cell sap:
    • Acidic conditions → Red
    • Neutral conditions → Purple
    • Alkaline conditions → Blue

Other Pigments:

  • Carotene → Orange color
  • Chlorophyll → Green color
  • Xanthophylls → Yellow color

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