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Did you mean Photysystem I and Photosystem II. They both are overall identical except that Photosystem I is actually a later part of the process of Photosynthesis than Photosystem II, its only called Photosystem I because it was discovered first. Photosynthesis starts when light excites Photosystem II causing it to break up H20 that comes from the roots into H2 and 02. (If you are wondering why oxygen becomes two molecules when in H20 there is only one molecule of it, that is because it cannot exist as one molecule stably therefore it bonds with another oxygen from another break down almost instantly.) Then Photosystem II sends electrons across the electron transport pathway (along the membrane of the Thylakoid in between the two photosystems) to Photosystem I which then uses them to convert NaDP+ into NaDPH by adding a phosphate group from outside the Thylakoid. Thats pretty much what each Photosystem does and both are located inside the Thylakoid membrane.

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Two plant cell parts not found in an animal cell?

actually its the cell wall and the chloroplast


What are the waste products in photosynthesis?

The waste product of photosynthesis is oxygen, which is released into the atmosphere as a byproduct of the light-dependent reactions. This oxygen is crucial for many organisms, including humans, as it is essential for respiration.


How are the word equations of photosynthesis and respiration similar?

The equation for photosynthesis and respiration are similar but in opposite direction in the sense that what is used in respiration is produced during photosynthesis and what is produced during respiration is again used in photosynthesis. It can be explained by the following equation:- 6CO2 + 6H2O = C6H12O6 + 6O2 (photosynthesis) C6H12O6 + 6O2 = 6CO2 + 6H2O (Respiration)


Along with plants and algae which organisms can photosynthesis occur?

Photosynthesis can also occur in certain types of bacteria, such as cyanobacteria. These organisms are capable of converting sunlight into energy through the process of photosynthesis, similar to plants and algae.


What are the 3 major steps of photosynthesis?

The whole process of photosynthesis is not divided into 3, but into 2 steps - light and dark reactions.The dark reactions are also known as the dark phase of photosynthesis and this dark phase is divided into 3 steps.Actually the dark phase is the Calvin cycle which is composed of these 3 major steps: 1. Carbon (or Carbon Dioxide - CO2) fixation 2. Reduction 3. Regeneration (of Ribulose)