A researcher analyzes the chemical structure of a green pigment extracted from spinach leaves and identifies a porphyrin ring. Which metal ion is located at the center of this ring?
Q1. A researcher analyzes the chemical structure of a green pigment extracted from spinach leaves and identifies a porphyrin ring. Which metal ion is located at the center of this ring?
Answer: Magnesium
Explanation: Magnesium occupies the central position in the porphyrin ring of chlorophyll; Iron is the central atom in hemoglobin, not chlorophyll.