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Biochemistry - of all the continuously occurring biochemical reactions that continually serve to keep both plant and animal Cells Alive, just a small portion of these are photo-synthetic in nature.
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∙ 13y ago
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∙ 13y agoThey are also known as the Calvin Cycle, in which Carbon-Dioxide is converted into Glucose using ATP and NADPH molecules.
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∙ 13y agocarbon fixation
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∙ 12y agoCalvin cycle
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∙ 14y agoCalvin cycle.
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∙ 12y agoDark reactions or Calvin cycle
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∙ 11y agoPHOTOPHASE
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Can the light dependant reactions occur without the light independent reactions?
No, the light reactions occur while light is present; however, the Calvin Cycle or light-independent reactions can occur any time. The light-independent reactions require photons, or energy stored from the light reactions, to complete photosynthesis.
Compare and contrast light dependent and light independent reactions of photosynthesis.?
Light dependent reactions : The first stage of the photosynthetic system is the light-dependent reaction, which converts solar energy into chemical energy. The light dependent reaction produces oxygen gas and converts ADP and NADP+ into the energy carriers ATP and NADPH. In plants, light dependent reactions occur in the thylakoid membranes of the chloroplasts and use light energy to synthesize ATP and NADPH. The light dependent reaction has two forms; cyclic and non-cyclic reaction. In the non-cyclic reaction, the photons are captured in the light-harvesting antenna complexes of photosystem II by chlorophyll and other accessory pigments.The cyclic reaction takes place only at photosystem I. Once the electron is displaced from the photosystem, the electron is passed down the electron acceptor molecules and returns back to photosystem I, from where it was emitted; hence the name cyclic reaction. Light-independent reaction : In photosynthesis, the light-independent reactions, also somewhat misleadingly called the dark reactions (they don't require darkness, but they do require the products of the light reactions), are chemical reactions that convert carbon dioxide and other compounds into glucose. It occurs in the stroma, the fluid filled area of a chloroplast outside of the thylakoid membranes. These reactions, unlike the light-dependent reactions, do not need light to occur; hence the term dark reactions. These reactions take the products of the light-dependent reactions and perform further chemical processes on them. There are two light-independent reactions: carbon fixation and the Calvin-Benson cycle.
What happens during light dependent reaction?
glucose is formed in the form of 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.
Difference between light dependent reactions and light independent reactions in photosynthesis?
I'm assuming you're talking about photosynthesis. The main difference can be seen in the terms. Light dependent need light to react, light independent do not. In the light reactions the photon of light hits the chlorophyll which excites an electron that goes into the electron transport chain. This electron comes from water being split into H+ ions and oxygent gas. A small amount of ATP is produced and NADPH is produced. In the dark reaction, called the Calvin cycle, the ATP and NADPH produced by the light reaction is used to combine RUBP with CO2 to make glucose.
What are two other names for the light independent?
Calvin Cycle or Dark Reactions
Can the light dependant reactions occur without the light independent reactions?
No, the light reactions occur while light is present; however, the Calvin Cycle or light-independent reactions can occur any time. The light-independent reactions require photons, or energy stored from the light reactions, to complete photosynthesis.
What is the Site for carbohydrate production during light independent reaction?
The light-independent reactions of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside of the thylakoid membranes. These reactions take the light-dependent reactions and perform further chemical processes on them. There are three phases to the light-independent reactions, collectively called the Calvin cycle: carbon fixation, reduction reactions, and ribulose 1,5-bisphosphate (RuBP) regeneration.
Where do the light-idependent reactions pf photosynthesis take place?
Light-independent reactions of photosynthesis take place in the thylakoid of plants. These reaction convert carbon dioxide and other compounds into glucose.
What conditions must be present for light-independent reactions to occur?
Two condition that must be present for light independent reactions to occur is the presence of CO2 and the presence of ribulose bisphosphate. Two other conditions include the presence of ATP and NADPH and the presence of required enzymes.
Compare and contrast light dependent and light independent reactions of photosynthesis.?
Light dependent reactions : The first stage of the photosynthetic system is the light-dependent reaction, which converts solar energy into chemical energy. The light dependent reaction produces oxygen gas and converts ADP and NADP+ into the energy carriers ATP and NADPH. In plants, light dependent reactions occur in the thylakoid membranes of the chloroplasts and use light energy to synthesize ATP and NADPH. The light dependent reaction has two forms; cyclic and non-cyclic reaction. In the non-cyclic reaction, the photons are captured in the light-harvesting antenna complexes of photosystem II by chlorophyll and other accessory pigments.The cyclic reaction takes place only at photosystem I. Once the electron is displaced from the photosystem, the electron is passed down the electron acceptor molecules and returns back to photosystem I, from where it was emitted; hence the name cyclic reaction. Light-independent reaction : In photosynthesis, the light-independent reactions, also somewhat misleadingly called the dark reactions (they don't require darkness, but they do require the products of the light reactions), are chemical reactions that convert carbon dioxide and other compounds into glucose. It occurs in the stroma, the fluid filled area of a chloroplast outside of the thylakoid membranes. These reactions, unlike the light-dependent reactions, do not need light to occur; hence the term dark reactions. These reactions take the products of the light-dependent reactions and perform further chemical processes on them. There are two light-independent reactions: carbon fixation and the Calvin-Benson cycle.
What condition must be present for light independent to occur?
Two condition that must be present for light independent reactions to occur is the presence of CO2 and the presence of ribulose bisphosphate. Two other conditions include the presence of ATP and NADPH and the presence of required enzymes.
What is the lights reactions?
In scientific terms the light-independent reaction related to the process of photosynthesis which involves the conversion and reaction of carbon dioxide and other compounds to form Glucose.
What occurs during the light reactions?
During light dependent reactions chlorophyll and other light-aborbing molecules capture energy from sunlight.
What are other names for the Calvin cycle?
The Calvin Cycle is also known as the Calvin-Benson Cycle, light-independent reaction, or the C3 Cycle.
What happens during light dependent reaction?
glucose is formed in the form of ATP
What accepts the C2 during dark reaction?
The light-independent reactions of photosynthesis are chemical reactionsthat convert carbon dioxide and other compounds into glucose. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside of the thylakoid membranes. These reactions take the light-dependent reactions and perform further chemical processes on them. There are three phases to the light-independent reactions, collectively called the Calvin cycle: carbon fixation, reduction reactions, and ribulose 1,5-bisphosphate (RuBP) regeneration.Despite its name, this process occurs only when light is available. Plants do not carry out the Calvin cycle by night. They, instead, release sucrose into thephloem from their starch reserves. This process happens when light is available independent of the kind of photosynthesis (C3 carbon fixation, C4 carbon fixation, and Crassulacean Acid Metabolism); CAM plants store malic acid in their vacuoles every night and release it by day in order to make this process work.[1]
