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Through photosystem II the excited electrons go down a electron transport chain pumping hydrogen ions into the thylacoid space where these ions fall down through an ATP synthase making ATP. In photosystem I the electron transport chain reduces NADP+ to NADPH, an electron carrier.
These molecules now are used in the Calvin cycle to fix carbon into sugars for the plant.
A simplified explanation.
Light reactions in photosynthesis generate ATP and NADPH molecules, which are then used as energy sources in the dark reactions (Calvin cycle) to convert carbon dioxide into glucose. The ATP and NADPH molecules provide the necessary energy to fuel the chemical reactions that ultimately result in the production of glucose.
In photosynthesis, the light reactions converts the sunlight int chemical energy (ATP molecules, NADH+H). Dark reactions (light independent reactions) do not use sunlight directly, but use energy stored in ATP and NADH molecules combined with CO2 to produce sugars.
ATP and NADPH. Photo system II provides the ATP and photosystem I the NADPH and both of these products are used in the Calvin cycle in the production of sugar by phosphorylation, with ATP, to rearrange Calvin cycle intermediates and reduction of those self same intermediates by NADPH.
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How do the light reactions and dark reactions work together?
The light reactions provide energy carriers for the dark reactions.
How are the dark reactions that occur in plants dependent on the light reactions?
The dark reactions, also known as the Calvin cycle, depend on the products of the light reactions, such as ATP and NADPH, to drive the conversion of carbon dioxide into sugars. The ATP and NADPH generated during the light reactions provide the energy and reducing power needed for carbon fixation and sugar production in the dark reactions. Without the products of the light reactions, the dark reactions cannot proceed efficiently.
True or false The light reactions of photosynthesis can occur only under light conditions and the dark reactions can occur only during the dark hours?
False. The light reactions of photosynthesis require light to convert solar energy into chemical energy, while the dark reactions (Calvin cycle) do not directly rely on light and can occur in both light and dark conditions. However, the dark reactions are indirectly dependent on the products of the light reactions.
What two processes have to occur for photosynthesis to take place?
Photosynthesis requires two processes to occur: light reactions and dark reactions. During light reactions, light energy is absorbed by chlorophyll in the chloroplasts, which converts it into chemical energy in the form of ATP and NADPH. These energy-carrying molecules are then used in the dark reactions, where carbon dioxide is fixed and converted into glucose through the Calvin cycle.
The dark reactions of photosynthesis are those that?
The dark reactions of photosynthesis, also known as the Calvin cycle, occur in the stroma of the chloroplast and do not require light energy. They involve the conversion of carbon dioxide into glucose through a series of enzymatic reactions. The dark reactions use the products of the light reactions, ATP and NADPH, as sources of energy and reducing power.
How do the light reactions and dark reactions work together?
The light reactions provide energy carriers for the dark reactions.
How the light and dark reactions work together?
The light reactions provide energy carriers for the dark reactions.
How do the light and dark Reaction work?
The light reactions provide energy carriers for the dark reactions.
How do light an dark reactions work together?
The light reactions provide energy carriers for the darl reactions.
How does light dependent and light independent reaction work together?
The Light Reactions Provide Energy Carriers For The Dark Reactions.
How do light reactions provide energy for dark reactions?
In photosynthesis, the light reactions converts the sunlight int chemical energy (ATP molecules, NADH+H). Dark reactions (light independent reactions) do not use sunlight directly, but use energy stored in ATP and NADH molecules combined with CO2 to produce sugars.
Can light provide activation energy?
Yes. Light can provide activation energy. In fact some chemicals must be stored in the dark to prevent unwanted reactions.
How do the light provide energy for the dark reactions?
In photosynthesis, the light reactions converts the sunlight int chemical energy (ATP molecules, NADH+H). Dark reactions (light independent reactions) do not use sunlight directly, but use energy stored in ATP and NADH molecules combined with CO2 to produce sugars.
How do the light reactions provide for the dark reactions?
In photosynthesis, the light reactions converts the sunlight int chemical energy (ATP molecules, NADH+H). Dark reactions (light independent reactions) do not use sunlight directly, but use energy stored in ATP and NADH molecules combined with CO2 to produce sugars.
How are the dark reactions that occur in plants dependent on the light reactions?
The dark reactions, also known as the Calvin cycle, depend on the products of the light reactions, such as ATP and NADPH, to drive the conversion of carbon dioxide into sugars. The ATP and NADPH generated during the light reactions provide the energy and reducing power needed for carbon fixation and sugar production in the dark reactions. Without the products of the light reactions, the dark reactions cannot proceed efficiently.
True or false The light reactions of photosynthesis can occur only under light conditions and the dark reactions can occur only during the dark hours?
False. The light reactions of photosynthesis require light to convert solar energy into chemical energy, while the dark reactions (Calvin cycle) do not directly rely on light and can occur in both light and dark conditions. However, the dark reactions are indirectly dependent on the products of the light reactions.
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.
