These are bacteria that produce their own food through photosynthesis, a process where light energy is converted into chemical energy.
Cyanobacteria: A type of photosynthetic bacteria that are blue-green in color and contribute significantly to the Earth's oxygen supply.
The organelles found in plant cells and eukaryotic algae where photosynthesis occurs.
Organisms that can produce their own food from inorganic substances using light or chemical energy. Photosynthetic bacteria fall under this category.