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Q: Where does the H2O come from in the light reaction?
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Which is a role of photosystem ii in the light reaction?

Splitting H2O (Apex)


CO2 H2O light energy sugar O2?

Yes, this is the photosynthesis reaction.


Is H2O a chemical reaction?

No, H2O is the compound water and is not a reaction. However, it can be one of the products of a chemical reaction.


What is the overall reaction for photosynthesis?

6(CO2 + H2O) ---solar energy--> (C6H12O6) + 6(O2)


What type of reaction is represented H2CO3 to H2O plus CO2?

H2O(aq)+CO2(g)


Do plants use only light to make food?

No plant not only depend on light but also on CO2 and H2O for its production of food. Allthoug it can not make food in absence of light as it helps in reaction of carbon dioxide and water and work as energy for the reaction.


Complete the balance MgO plus H2O?

The balanced equation for the reaction between MgO and H2O is MgO + H2O -> Mg(OH)2.


What is the acid and what is the base in the reaction HBr H2O - Br- H2O?

acid is hbr and the base is h2o


Where does the ATP energy come from for the Calvin cycle?

The light reaction


Which is the role of photosynthesis II in the light reactions?

It has to make two products, Those are ingredients of the dark reaction.


Name two stages of photosynthesis?

There is the light-dependent stage, where sunlight interacts with choloropyll to set up an electron-transport chain, then there is the chemical stage, where glucose molecules are synthesized from CO2 and H2O.


Where does the oxygen produced in the dark reaction of photosynthesis come from?

It is obtained from air. Oxygen is not is not produced in dark reaction but in light reaction