The least soluble pigment is identified as:
Correct answer: D. Chlorophyll b
- A. Carotene
- B. Xanthophyll
- C. Chlorophyll a
- D. Chlorophyll b
Explanation
In paper chromatography, pigments separate based on their differing solubilities in the chosen solvent and their affinity to the chromatography paper. More soluble pigments will travel further up the paper with the solvent, while less soluble pigments will travel shorter distances or remain near the origin. Chlorophyll b has travelled least distance so it is least soluble.
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About Plant Nutrition and Transport
Plants require macronutrients and micronutrients for growth, and mineral deficiencies produce recognizable symptoms. Transport involves water and minerals through xylem by transpiration pull, cohesion and adhesion, while phloem translocates sugars from sources to sinks. Root pressure and transpiration are distinct mechanisms.
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