Photosynthesis is a chemical process by which plants extract energy from sunlight through specialized cells called chromatophores which provide different forms of light absorption, depending on the type of cells, which are chlorophyll based. Cell types include (bacterio)chlorophyll, carotenoids, and phycobilins. Pigmentation related to these cells, which is protein based and molecularly configured, regulates photosynthesis by controlling light frequency absorption.
Examples of Photosynthesis:
|Algae:Basic photosynthesis, providing energy for the entire organism including cell division.|
Vascular plants: Complex photosynthesis, providing energy for growth and advanced reproduction.
Anerobic organisms: Photosynthesis in an oxygen depleted environment by certain species of bacteria using infrared wavelengths.
Overview of cycle between autotrophs and heterotrophs. Photosynthesis is the main means by which plants, algae and many bacteria produce organic compounds and oxygen from carbon dioxide and water (green arrow).