Name the central element present in chlorophyll.

The central element present in chlorophyll is magnesium (Mg).
Chlorophyll is the green pigment found in plants, algae, and some bacteria, and it plays a crucial role in the process of photosynthesis by absorbing light energy, primarily from the sun. The structure of chlorophyll consists of a porphyrin ring with a magnesium ion at its center. This magnesium ion is essential for chlorophyll's ability to absorb light, specifically in the red and blue wavelengths, and to convert that energy into chemical energy.
Here’s a breakdown of the chlorophyll structure:
• The porphyrin ring is a large, cyclic structure made up of carbon, nitrogen, and hydrogen atoms.
• The magnesium ion (Mg²⁺) is coordinated at the center of this ring, and it is this metal ion that is key to the pigment's function in light absorption.
Thus, magnesium is the central element in chlorophyll, making it essential for the plant's ability to carry out photosynthesis.