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Q: Which of the following is NOT present in chlorophyll?
  • A. Magnesium
  • B. Carbon
  • C. Potassium
  • D. Nitrogen
Correct Answer: Option C - Chlorophylls are green pigments found in cyanobacteria, chloroplast of algae and plants. It was first isolated and named by Caventou and Pelletier in 1817. Maganesium is the central ion in chloroplast's tetrad structure. It contain Nitrogen, carbon, oxygen but it lacks potassium.
C. Chlorophylls are green pigments found in cyanobacteria, chloroplast of algae and plants. It was first isolated and named by Caventou and Pelletier in 1817. Maganesium is the central ion in chloroplast's tetrad structure. It contain Nitrogen, carbon, oxygen but it lacks potassium.

Explanations:

Chlorophylls are green pigments found in cyanobacteria, chloroplast of algae and plants. It was first isolated and named by Caventou and Pelletier in 1817. Maganesium is the central ion in chloroplast's tetrad structure. It contain Nitrogen, carbon, oxygen but it lacks potassium.