Answer:
Oxygenic photosynthesis
Step-by-step explanation:
Photosynthesis is the process through which plants prepare their own food using sun light. Photosynthesis is further divided in to Light-dependent reactions and light independent reaction.
Light reactions occur in the thylakoid membranes of the chloroplasts in the presence of light. On the basis of producing oxygen as product, photosynthesis can be further classified as Oxygenic photosynthesis and Anoxygenic photosynthesis.
Oxygenic photosynthes:
Oxygenic photosynthesis utilizes water as reactant to donate electrons to drive hydrogen ions. This category of photosynthesis produces oxygen as byproduct. while
Anoxygenic photosynthesis:
Anoxygenic photosynthesis utilizes other molecules instead of water as reactant. for example some forms of bacteria like Green and purple sulfur bacteria used hydrogen and sulfur as electron donors.