Question:

The central, structural atom in the primary photosynthetic pigment is

Updated On: Aug 15, 2022

$Fe$
$Mg$
$Cu$
$Zn$

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The Correct Option is B

Solution and Explanation

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.

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Concepts Used:

Photosynthesis in Higher Plants

Processes Of Photosynthesis in Higher Plants:

Photosynthesis in higher plants involves the following processes:

Light Reaction
Dark Reaction

Light Reaction:

This phenomenon occurs in the presence of light.
The pigment absorbs light and produces energy in the form of ATP.
The process involves- absorption of light, water splitting, the release of oxygen, and formation of ATP and NADPH.

Dark Reaction:

This process occurs in the absence of light in the stroma of the chloroplasts. The following cycles are involved in the process:

Calvin Cycle (C3 Cycle)
C4 Cycle (Hatch and Slack Pathway)