Photosynthetic bacteria

Definition

Photosynthetic bacteria are prokaryotic microorganisms that convert light energy into chemical energy through photosynthesis. They play a crucial role in ecosystems by producing oxygen and organic compounds.

5 Must Know Facts For Your Next Test

1. Photosynthetic bacteria contain pigments like chlorophyll or bacteriochlorophyll to capture light energy.
2. They can be found in various environments, including freshwater, marine, and terrestrial habitats.
3. Cyanobacteria are a major group of photosynthetic bacteria known for their role in the oxygenation of Earth's atmosphere.
4. Unlike plants, photosynthetic bacteria do not have chloroplasts; instead, their photosynthetic machinery is embedded in the cell membrane.
5. Some photosynthetic bacteria can perform anoxygenic photosynthesis, which does not produce oxygen.

Related terms

Cyanobacteria:

A group of photosynthetic bacteria responsible for producing much of the oxygen in Earth's early atmosphere.

Anoxygenic Photosynthesis: A form of photosynthesis used by some bacteria that does not produce oxygen as a byproduct.

Chlorophyll:

A pigment commonly found in plants and some bacteria that absorbs light for use in photosynthesis.