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NEET2026BiologyChapterActual

Which of the following statements regarding the photosynthetic pigments separated by paper chromatography is incorrect?

Options

  1. AChlorophyll a appears as a bright or blue-green band and acts as the chief photosynthetic pigment.
  2. BXanthophylls appear as a yellow-green band and help in transferring absorbed light energy to chlorophyll a .
  3. CCarotenoids appear as a yellow to yellow-orange band and protect chlorophyll a from photo-oxidation.
  4. DChlorophyll b acts as an accessory pigment and enables a wider range of wavelengths to be utilized for photosy

Correct answer

B. Xanthophylls appear as a yellow-green band and help in transferring absorbed light energy to chlorophyll a .

Step-by-step solution

In paper chromatography, the different photosynthetic pigments appear as specific coloured bands: Chlorophyll a appears as a bright or blue-green band. Chlorophyll b appears as a yellow-green band. Xanthophylls appear as a yellow band. Carotenoids appear as a yellow to yellow-orange band. Therefore, the statement that xanthophylls appear as a yellow-green band is incorrect. Answer: Xanthophylls appear as a yellow-green band and help in transferring absorbed light energy to chlorophyll a .

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