Figure 4From: Surgical inflammation: a pathophysiological rainbowProtagonism of the Tetrapyrrole molecules in vegetal and animal kingdoms. Tetrapyrrole products allow plants to use CO2and mammals to use O2. These molecules in their color version take advantage of the solar spectrum, produced by the dispersion of sunlight and so they would play the main role in the origin of plant and animal life, and therefore, in inflammation.Back to article page