Question

The central, structural atom in the primary photosynthetic pigment is

• A. $Fe$
• B. $Mg$
• C. $Cu$
• D. $Zn$

Answer 1

Answer: (B)

$Mg$

Answer 2

Chlorophyll is the primary photosynthetic pigment because it performs primary reaction of photosynthesis which involves conversion of light into chemical energy. A chlorophyll molecule consists of a head called porphyrin and.a tail made up of long chain alcohol called phytol. Magnesium $(Mg)$ forms the central atom of the porphyrin ring of chlorophyll molecule.