Photosynthesis is carried out by many different organisms, ..

 The Stroma: the liquid-y part of the chloroplast that are involved in the Calvin Cycle (Act 2).
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Organelles Involved in Photosynthesis | Sciencing

Current understanding is that the earliest photosynthetic organisms were aquatic bacteria, some of which are still around today. One of these, halobacterium halobium, grows in extremely salty water. It makes use of the bacteriorhodopsin pigment. The chlorophyll system developed to use the available light, as if it developed in strata below the purple bacteria and had to use what it could get.

Reaction mechanisms involved have not however been completely elucidated (10, 11).
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"Organelles Involved in Photosynthesis."

Studies on hydrogen production through the exposure of organic wastes (waste fluids from food factories, pulp factories, etc.) to photosynthetic bacteria and light, have been conducted in a number of countries.

Photosynthesis:Photosynthesis is the process by which green plants and certain otherorganisms transform light energy into chemical energy.
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Allphotosynthetic organisms--with the exception of a minor group ofbacteria, the halobacteria--contain the light-absorbing pigmentchlorophyll, which plays a key role in the transfer of energy fromlight to chemical compounds.Photosynthesis is the fundamental process that maintains life onEarth.

CO2 anabolism is an energy-consuming reaction in that it utilizes chemical energy produced by photosynthesis.
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Organisms involved in photosynthesis Flashcards | Quizlet

In plants such as green algae, and cyanobacteria (blue-green algae), water is the electron source, while in photosynthetic bacteria, organic or sulfur compounds provide electron sources.

What types of organisms perform photosynthesis? | …

Energy conversion, ATP synthesis and the production of both CO2 and hydrogen on the other hand, are not unique to photosynthetic organisms, but occur in all types of microorganisms, and are in fact similar to the respiratory processes which occur in mitochondria of higher organisms.

What living organisms are responsible for photosynthesis

In the ~2.5 billion years since photosynthetic organisms have appeared daily in this performance, enough oxygen has accumulated to account for 21% of the atmosphere...

Photosynthetic and Chemosynthetic Organisms ..

But they use other things too.
Organisms That Use Photosynthesis
The Steps of Photosynthesis (Simplified)
The plant gathers sunlight to convert into energy.
Then the light energy forms into hydrogen and oxygen.
hydrogen joins with carbon dioxide and creates sugars.
Sugars are then separated and then distributed throughout the plant.
Parts that conduct in the photo.

chemical energy by photosynthetic organisms.

In a broader sense, photosynthesis, including CO2 anabolism, can be divided into several steps: i) photoelectric charge isolation using photon energy (conversion to electrical energy), ii) fixation of electrical energy in the form of chemical energy (ATP synthesis), and iii) chemical reactions involving ATP (fixation of CO2, and hydrogen production).

Scientists who involved in Photosynthesis - YouTube

They use a PSI type reaction center.
The primary pigment involved is bacteriochlorophyll g, which is unique to the group and has a unique absorption spectrum; this gives the heliobacteria their own environmental niche.
Phototrophy takes place at the cell membrane, which does not form folds or compartments as it does in purple bacteria.
Even though heliobacteria are phototrophic, they can grow without light by fermentation of pyruvate.
Plants obtain their own food by using the energy they get from the sun.
The plant captures sunlight with the pigment chlorophyll
Then the sunlight turns into food and sugars.
Extra is called ATP.