I mean Plants during photosynthesis produce oxygen but Do bacteria also produce oxygen during photosynthesis or produce other gases?
If yes , how do these bacteria process photosynthesis by producing other gases?
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$\begingroup$ There are bacteria that do anoxygenic photosynthesis but, afaik, cyanobacteria (which produce oxygen) are the most important phototrophic bacteria on modern Earth. I suggest you do a bit of reading on Wikipedia. $\endgroup$ – Roland Dec 7 '18 at 9:50
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Photosynthesis is always about using solar energy to oxidize a mineral molecule and reduce an organic molecule, which becomes an energy source for the photosynthetic cell.
Bacteria and plants have different types of photoreceptors. It is not always the same chlorophyll, maybe even no chlorophyll at all ! The different colours in algae come from the different pigments they are using to do photosynthesis.
Plant cells carry out photosynthesis in chloroplasts, which are organites, whereas bacteria carry it out in their plasmic membranes.
Plants do aerobic photosynthesis, which means they reduce dioxygen into water. Some bacteria do anoxic photosynthesis, which means they can reduce hydrogen sulfide into sulfur.
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1$\begingroup$ (+1) But in PS (green plant and cyanobacteria), water is the source of electrons, and it is oxidized (loses electrons) to form oxygen. Plants, of course, also respire aerobically, where dioxygen is reduced to water. But of course you are right: water is not the only source of electrons in PS. $\endgroup$ – user1136 Dec 13 '18 at 20:58
