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Is glucose a result of light reactions?
No, glucose is not a direct result of the light reactions of photosynthesis. The light reactions, which occur in the thylakoid membranes of chloroplasts, convert light energy into chemical energy in the form of ATP and NADPH. Glucose is produced during the Calvin cycle, which is the second stage of photosynthesis that occurs in the stroma of chloroplasts, using the ATP and NADPH generated from the light reactions to fix carbon dioxide.
What is the energy fixing stage of photosynthesis?
The energy-fixing stage of photosynthesis is the light-dependent reactions, which take place in the thylakoid membranes of chloroplasts. In this stage, light energy is absorbed by chlorophyll and converted into chemical energy in the form of ATP and NADPH.
What do plants produce during the first stage of photosynthesis?
They produce oxygen gas during the light reactions.
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
What are the light independent and dependent stages of photosynthesis?
Light dependent reactions produce ATP and NADPH from energy captured from light. Therefore without light it cannot proceed. Light independent reactions fix carbon dioxide into glucose using the ATP and NADPH produced in the light dependent reactions. So light independent reactions can occur without light as long as CO2, ATP and NADPH is present.
What are the reactions of the first stage of photosynthesis?
light dependant reactions
What are the reactions of the first stage of the photosynthesis called?
This is called the light phase oh photosynthesis as opposed to the dark phase. During the light phase, photons excite enzymes on the thylakoid. Also can be known as Light-Dependent Reactions
What are the two stage of photosyntesis?
A series of light-dependent reactions that are temperature independent, and a series of temperature-dependent reactions that are light independent.
What are the stage in the process of 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.
What happens during each of the two stages of photosynthesis?
These stages are called the light reactions and the dark reactions. The light reactions take place in the presence of of light. The dark reactions do not require direct light, however dark reactions in most plants occur during the day.
What are the two main stages for photosynthesis?
The two main stages of photosynthesis are the light-dependent reactions and the light-independent reactions (Calvin Cycle). In the light-dependent reactions, light energy is used to split water molecules and produce ATP and NADPH. In the Calvin Cycle, ATP and NADPH are used to convert carbon dioxide into glucose.
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 products of the light reactions are used as reactans in the dark reactions?
NADPH ans ATP formed in light reactions are used in the second stage of dark reactions.Carbondioxide from the air is the main reactant of photosynthesis.
Which stage uses the reactant water from the overall photosynthesis equation?
it's the stage that involves light absorbing pigments such as chlorophyll and produces oxygen by the photolysis of water. An electron transport chain produces NADPH directly, and ATP indirectly through a proton gradient that it sets up as happens in mitochondria.
What do plants produce during first stage of photosynthesis?
They produce oxygen gas during the light reactions.
Light-dependent reactions of photosynthesis?
The light-dependent reactions, or light reactions, are the first stage of photosynthesis. In this process light energy is converted into chemical energy, in the form of the energy-carriers ATP and NADPH. In the light-independent reactions, the formed NADPH and ATP drive the reduction of CO2 to more useful organic compounds, such as glucose.
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
