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There must be a light reaction first before dark reaction. This is so that there is something to be compared.

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11y ago

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Why is light reaction of photosynthesis essential for the dark reaction to proceed?

why light reaction of photosynthesis is essential before the dark reaction can procced?


Why must the light reaction occur before the dark reaction?

The light reaction produces ATP and NADPH, which are needed to fuel the dark reaction. The dark reaction (Calvin Cycle) uses the ATP and NADPH produced in the light reaction to fuel the conversion of carbon dioxide into glucose. In essence, the light reaction provides the energy source that drives the dark reaction.


What are the two basic steps to photosynthesis?

The Light Dependent process and then the Light Independent process (known as the Calvin Cycle).


What is the name for the first and second stage of photosynthesis?

1st-Light reaction 2nd-Dark reaction


Which reaction makes ADP light or dark?

It is the light reaction. Then they moves to dark reaction


Why is it light reaction presequisite to the dark reaction?

without ATP and (NADPH +H+) WE cannot run the dark reaction.and this molecules are produced from the light reaction.


How does light and dark reactions correspond with parts of a leaf?

Dark reaction needs energy. this energy is supplied by light reaction


What are the two reaction phases in photosynthesis?

light reaction and dark reaction


What is light reaction and dark reaction?

Photosynthesis can be divided into two part: light reaction is the first stage of photosynthesis, occurring only in the presence of light, during which energy captured from light drives the production of ATP. dark reaction is the second stage of photosynthesis, not requiring light to occur, and during which energy released from ATP drives the production of organic molecules from carbon dioxide.


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


What is the the process of plant respiration?

the respiriration is such a oxidative reductive process ... and during plant it have two complex more process consist of seriese of steps DARK reaction and Light reaction.................... dark reaction need no light wheather in day time or night time...................... some how the light reaction are done in the prescence of light ..........during the light reaction the formation of the light reaction is just one ATP Which is responsible for the production of dark reaction .............


The dark reaction phase of photosynthesis occurs even without light as long as there suffcien supply of light reaction t lo?

The light reaction makes two substances needed by the dark reaction: ATP and NAPH. As long as these two substances are available the dark reaction can continue, even in the absence of light. However when they run out more light is needed to replace them.