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What are light independent and dependent reactions?
Light dependent reactions are reactions the capture light energy and convert it into chemical energy(ATP). It occur in the chloroplast of plant cells Light independent reactions are reactions capture energy and use it to produce food . It does not need sunlight
What is the two sets of reactions that need to occur in order for photosynthesis to take pace?
light dependent and light independent reactions
What does the light independent reactions mean?
Biochemical reactions in photosynthesis that produce organic molecules from carbon dioxide, that do not need light. This means that the aforementioned processes are 'independent of light'. N.B. Light refers to sunlight
Explain why the light-independent reactions are called such as?
The light-independent reactions do not directly require light energy to occur; they can proceed in the absence of light. These reactions, also known as the Calvin cycle, are responsible for the conversion of carbon dioxide into glucose and other organic molecules using ATP and NADPH produced during the light-dependent reactions.
Why are the reactions of the calvin cycle also called the light independent reaction?
Well, darling, they call it the light-independent reaction because unlike photosynthesis where light is needed, the Calvin Cycle doesn't give a damn about the sun. It's all about using that stored up energy from the light-dependent reactions to fix carbon dioxide and make some sugar. So, in a nutshell, it's like saying, "I don't need no stinkin' light to do my job!"
Compare and contrast light dependent and light independent reactions of photosynthesis.?
Light-dependent reactions occur in the thylakoid membrane and require light energy to produce ATP and NADPH. Light-independent reactions (Calvin Cycle) occur in the stroma and use ATP and NADPH to convert CO2 into glucose. Both processes are essential for photosynthesis and occur in chloroplasts.
Why does the Calvin cycle need the light reactions to keep going?
The Calvin cycle itself does not need light.The Calvin cycle, also called the light independent stage of photosynthesis, uses ATP (energy) and NADPH (hydrogen) to convert carbon dioxide into carbohydrate (sugar). These reactions do not need light and can take place in the dark.However in a plant the ATP and NADPH are produced by the light-dependent stage of photosynthesis. To produce these substances light is needed.So although the Calvin cycle does not need light itself it does need substances made using light.See What_connects_the_light_dependent_reaction_to_the_light_independent_reactionand How_do_the_lightdependent_reactions_differ_from_the_calvin_cycle
Is Calvin cycle light dependent or light independent?
The Calvin cycle is a light-independent process because it does not directly require light energy to function. It can occur in the absence of light, utilizing the products of the light-dependent reactions of photosynthesis to convert carbon dioxide into glucose.
How are the dark reactions that occur in plants dependent on the light-reactions?
The dark reactions that occur in plants are dependent on the light reactions because the dark reactions need ATP and NADPH. ATP and NADPH are energy molecules that dark reactions need to do their job.
Why is the Dark Reaction sometimes called Light Independent Reaction?
Because the dark reactions are CO2 assimilation's and do not need light energy. They use the ATP and NADPH created from the light reactions to convert CO2 to carbohydrates, so this can happen in the "dark" as long as the light reactions already happened.
Why is the second stage of photosynthesis called light independent reaction?
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
Where in the chloroplast do the light dependent reactions take place?
They occur in the thylakoid membranes of the chloroplasts in plant cells. They are light dependent in that they need the energy given off by the sun to "excite" the electrons in order to move down the electron transfer chain, which ultimately prepares them to be used by NADP+ to form NADPH to assist in the light independent cycle. (Calvin Benson Cycle)
