The Monera kingdom is divided into two phylums. Cyanobacteria has about 1500 species that are generally in an aqeous environment. The are commonly called blue-green algae. The are the green scum that is found in warm stagnant ponds or lakes. The chlorophyll is not in chloroplast but distributed through out the cell.
Bacteria are very important because of the the role they play in causing diseases in man.
Some bacteria are capable of photosynthesis but not by using the chlorophyll molecule and they do not produce oxygen.