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The light-independent reactions are sometimes referred to as the dark reactions, though that term may be misleading as they do not actually require darkness to proceed. The term "light-independent" is used to emphasize that the reactions occur regardless of the amount of light present as long as the proper substrate compounds are available. Even this term can be criticized, however, as the availability of substrates in plants depends on photosynthesis, so the reactions cannot be said to be entirely "light-independent." Furthermore, the term "dark reactions" may be more accurate in CAM (Crassulacean acid metabolism) plants, which only take up CO2, which is necessary for the reactions to proceed, at night.

http://en.wikipedia.org/wiki/Light-independent_reaction

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14y ago
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15y ago

a photochemical reaction is one which relies on light energy, hence the word 'photo' like in photosynthesis where light is needed to make glucose and oxygen from water and carbon dioxide.

hence why photochemical reactions are 'light dependent'

these reactions need light for the reaction to take place

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11y ago

Because it needs the energy from the sun in order to progress. Hence the name (sun) Light dependent reaction

Read more: Why_is_the_first_stage_called_light_dependent_reaction

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11y ago

Because it doesn't directly require light. Interestingly, light independent reaction will not perform in dark because ATP and NADPH made during the light reaction are not made, so the second stage cannot proceed.

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13y ago

Because they do not require the presence of Light to occur.

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13y ago

Because the reaction does not require light in order to proceed.

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15y ago

they do not require light to take place.

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12y ago

I don't know D;

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11y ago

they do not require light to take place.

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10y ago

they don't need light

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Q: Why is the second stage of photosynthesis called light independent reaction?
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Where is the second stage of photosynthesis occur?

The second step of photosynthesis happens between the chloroplasts, rather than inside of them. This particular step is also independent of light, so if the light suddenly goes away for some reason, it doesn't totally stop the photosynthesis all at once.


During which stage of photosynthesis does carbon fixation take place?

During the Light Independent Stage or second stage of photosynthesis.


What are the 2 main reactions in photosynthesis?

Photosynthesis happens in two stages, also called reactions. The first stage is the light-dependent stage. In this stage light energy is absorbed by chlorophyll and converted into chemical energy, and water is split to produce hydrogen. The unwanted oxygen from the water is released. The second stage is the light-independent stage. In this stage the chemical energy and the hydrogen from the first stage are used to convert carbon dioxide into carbohydrates, such as glucose. More details can be found on this site by searching for photosynthesis.


What is dark reaction process?

* the second phase of photosynthesis, that does not require the presence of light, during which ATP releases stored energy that is used to convert carbon dioxide molecules into sugars and other nutrients * The dark reactions of photosynthesis doesn't require the presence of light to photosynthesize. * 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. * there are 2 main stages in potosyntesis. the light reaction occurs only in the presence of light while dark reaction happens both when there is light and when it is dark.


Where is the location of Photosynthesis?

Photosynthesis occurs in the chloroplasts of the plant cell. There are stacks of thylakoids called granum, surrounded by a soultion called stroma in here. The first part of photosynthesis, known as The Light Reactions, takes place in the thylakoid membrane. The second part, the Calvin Cycle, takes place in the stroma.

Related questions

Which reaction during photosynthesis is light-independent?

That is the second step. It is called dark cycle


What is the Calvin cyle?

It is the second step of photosynthesis. It does not need light


Which term is the part of photosynthesis when energy is used to make sugar glucose?

Light-independent reactions


What are stages of photosynthesis?

Photosynthesis consists of two stages: a series of light-dependent reactions that are temperature independent and a series of temperature-dependent reactions that are light independent. The rate of the first series, called the light reaction, can be increased by increasing light intensity (within certain limits) but not by increasing temperature. In the second series, called the dark reaction, the rate can be increased by increasing temperature (within certain limits) but not by increasing light intensity.


What are the two stages in photosynthesis?

Photosynthesis is performed in two stages:Light reactions (or light-dependent reactions): Energy from sunlight is required.Dark reactions (or light-independent reactions): No sunlight is required. However, energy formed by the light-dependent reactions is needed.


Where is the second stage of photosynthesis occur?

The second step of photosynthesis happens between the chloroplasts, rather than inside of them. This particular step is also independent of light, so if the light suddenly goes away for some reason, it doesn't totally stop the photosynthesis all at once.


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

1st-Light reaction 2nd-Dark reaction


During which stage of photosynthesis does carbon fixation take place?

During the Light Independent Stage or second stage of photosynthesis.


Where does photosythsis occur?

Photosynthesis occurs in the choloroplast, a organelle in the cell. More specifically: photosynthesis is divided into several steps. The first step/steps is the light reaction, or light-independent reaction. This happens to absorb the photons, and with it, the energy, from the sun. This part occurs in the thylakoid membranes of the chloroplast. The second part is the Calvin cycle, or the dark/ light-dependent reaction. This part takes the results of the first reaction, and change that energy that was captured into glucose. This occurs in the grana of the choloroplast.


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 stored in phase 1 of photosynthesis?

There are two products. Those are NADPH and ATP.


What are the 2 main reactions in photosynthesis?

Photosynthesis happens in two stages, also called reactions. The first stage is the light-dependent stage. In this stage light energy is absorbed by chlorophyll and converted into chemical energy, and water is split to produce hydrogen. The unwanted oxygen from the water is released. The second stage is the light-independent stage. In this stage the chemical energy and the hydrogen from the first stage are used to convert carbon dioxide into carbohydrates, such as glucose. More details can be found on this site by searching for photosynthesis.