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Light depends on reactions of photosynthesis produce ATP and nadph but they are not in the overall final reaction that is written out for photosysnthesis why?
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∙ 12y ago
Photosynthesis is the phenomenon of preparing starch by green plants in the presence of sunlight.
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∙ 12y ago
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Number of ATP produces in photosynthesis?
Technically, ATP is produced only in the light reaction, their are 18 ATP molecules formed in it. In the dark reaction, ADP is formed by the breaking of the second and third phosphate group in ATP. Though overall in photosynthesis ATP isn't produced, it is formed in the light reaction, then broken in the dark, then recycled into the light, no over all gain or loss.
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
The reaction in photosynthesis can be endergonic or exergonic?
The energy balance for the overall reaction does not determine if the reaction needs energy input to occur, or not. The requirement, or not, for energy input, depends on the activation energy and that is independent of the overall enthalpy change. There is no answer to your question - it could be any, all or none.
What might happen if plants could not perform photosynthesis?
in photosynthesis the light energy converted into chemical energy. carbohydrates forms, corbon fixes in leaves. all the metabolic activities in plant body depends on the energy tapped through photosynthesis. metabolic activities are must & should for all living organisms for their survival.when photosynthesis not peformed,1.all the metabolic activities will stop2. due to that growth stops3.senescence will occur4.slowly & slowly plant leads to death & it will die.-Oxygen would be eliminated from the atmosphere. -Carbon would fulfill its role, causing global warming.-Producers would die, not being able to gain nutrients from photosynthesis and respiration.-The food chain would perish due to all the dead producers.If there was no photosynthesis, the provision of oxygen by the Ocean's phytoplankton and the Earth's plants would be lost.Also it would lead to an increase in the degree of global warming as noxious poisons accumulate in the atmosphere.And the FOOD CYCLE would be disturbed as The Food Chain starts with plants as they produce glucose through photosynthesis.
How long does it take for photosynthesis to happen?
Photosythesis is a process where the plant gets food from it's surroundings; carbon dioxide,sun's heat,water and soil nurients in turn for giving out 0xgen. How old are you? I knew that when I was nine and I'm fifteen now?!
What kind of chemicals react in a chemical reaction?
It solely depends on the reactions.
Do chemical reactions occur at different rates?
yes, it depends on the chemical reaction.
Should reactions be described as reversible or irreversible?
It depends on the reaction and whether you can get the original products.
What product of light reactions are required for the dark reactions?
The inputs of the Dark Reaction are NADPH, ATP, and CO2. The NADPH and ATP, which were produced in the Light Reactions, fix the carbon into a carbohydrate such as glucose. Enzymes are also needed for the Dark Reaction to take place. One such enzyme is Rubisco, which interacts with CO2 and RuBP in the first step of the Dark Reaction.
What do chemical reactions require in order to begin?
depends what you are trying to do and loads of stuff dose a chemical reaction.
The substance produced a result of a chemical reaction is?
Depends what the chemical reaction is. In all reactions energy is given off. In lot's of reactions also water (Hyrdodgen Oxide/ H2O) and CO2 in some cases. Hope that helped.
How many elements are there in bill nye the science guy chemical reactions?
It depends on which reaction he is doing - be more specific
Why do you have to have oxygen?
Everything that your body does, from the beating of your heart to the thoughts in your brain, depends upon a series of chemical reactions. The basic reaction which produces the energy needed to drive all the other reactions is the reaction of sugar and oxygen. Without that, everything stops.
What is energy released or absorbed during chemical change called?
It depends. There are two types of chemical reaction int his sense. Exothermic reactions release energy and endothermic reactions absorb it.
What part of the plant converts sunlight?
It depends on the plant; some have modifications that allow different parts of the plant to do most of the photosynthesis. Typically, the leaves do the most photosynthesis. They are broad and flat that allows increased surface area for reactions.
In chemical reactions are the numbers of the molecules of the products more than the number of molecules of the reactants?
soemtimes yes - sometimes no. It depends on the reaction.
Is the light dependant reaction cyclic?
Light dependant reactions in photophosporilation can either be cyclic of non-cyclic. It all depends on the organism.
