because jackie is amazing
Sugar is not a direct product of the light-dependent reactions because these reactions are focused on producing ATP and NADPH, which are used to power the Calvin cycle where sugar is actually produced. The light-dependent reactions convert light energy into chemical energy in the form of these molecules, which are then used in the Calvin cycle to convert carbon dioxide into glucose.
The phase of photosynthesis where light energy is converted to chemical energy in the form of ATP is called the light-dependent reactions. During these reactions, light is absorbed by chlorophyll and other pigments in the thylakoid membranes of the chloroplast, leading to the generation of ATP and reducing power (NADPH) that will be used in the Calvin cycle to produce sugars.
The Calvin cycle depends on the products of the light-dependent reactions (ATP and NADPH) to power the conversion of CO2 into carbohydrates. Without ATP and NADPH produced in the light-dependent reactions, the Calvin cycle cannot proceed.
The two reactions of photosynthesis are connected by two substances: ATP and NADPH. These are produced by the light dependent reaction and are used by the light independent reaction. ATP is produced from ADP and Pi (phosphate): ADP + Pi ---> ATP This reaction requires energy to make it work, and this energy comes from light absorbed in the light dependent reaction. NADPH is produced from NADP+ and H: NADP+ + H ---> NADPH This reaction also requires energy, which is obtained from light in the light dependent reaction. The ATP and the NADPH are used in the light dependent reaction to provide energy and a source of H to convert CO2 to CH2O (carbohydrate). The products of the reactions (ADP, Pi, NADP+) are recycled in the light dependent reaction to produce more ATP and NADPH. For a summary diagram see: http://www.griffined.com/imagesphotosynthesis-overview.gif
it is the first stage because the product of the light dependent reaction is ATP and NADPH+H+ (Nicotinamide Adenine Dinucleotide Phosphate Hydrogen) and these are required in the light independent reaction (calvin-benson cycle) I hope this helps :DDD
Sugar is not a direct product of the light-dependent reactions because these reactions are focused on producing ATP and NADPH, which are used to power the Calvin cycle where sugar is actually produced. The light-dependent reactions convert light energy into chemical energy in the form of these molecules, which are then used in the Calvin cycle to convert carbon dioxide into glucose.
Glucose, NADP and ADP
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.
The light reactions provide the energy carriers used in the Calvin cycle
The phase of photosynthesis where light energy is converted to chemical energy in the form of ATP is called the light-dependent reactions. During these reactions, light is absorbed by chlorophyll and other pigments in the thylakoid membranes of the chloroplast, leading to the generation of ATP and reducing power (NADPH) that will be used in the Calvin cycle to produce sugars.
They are ATP and NADH. They are energy carrying molecules.
The Calvin Cycle is dependent on the first stage of photosynthesis because it relies on the products of the light-dependent reactions, such as ATP and NADPH, to power the conversion of carbon dioxide into glucose.
The Calvin cycle depends on the products of the light-dependent reactions (ATP and NADPH) to power the conversion of CO2 into carbohydrates. Without ATP and NADPH produced in the light-dependent reactions, the Calvin cycle cannot proceed.
Light dependent reactions occur in the thylakoid membrane of the chloroplasts in photosynthetic organisms. The products (ATP and NADPH) are used in the second stage of photosynthesis, which is called the Calvin Cycle. (Oxygen is given off as a "waste" product--lucky for us!)
The two reactions of photosynthesis are connected by two substances: ATP and NADPH. These are produced by the light dependent reaction and are used by the light independent reaction. ATP is produced from ADP and Pi (phosphate): ADP + Pi ---> ATP This reaction requires energy to make it work, and this energy comes from light absorbed in the light dependent reaction. NADPH is produced from NADP+ and H: NADP+ + H ---> NADPH This reaction also requires energy, which is obtained from light in the light dependent reaction. The ATP and the NADPH are used in the light dependent reaction to provide energy and a source of H to convert CO2 to CH2O (carbohydrate). The products of the reactions (ADP, Pi, NADP+) are recycled in the light dependent reaction to produce more ATP and NADPH. For a summary diagram see: http://www.griffined.com/imagesphotosynthesis-overview.gif
Light dependent reactions take place in the thylakoid membrane. The Calvin Cycle takes place in the stroma. The light dependent reactions use light energy to make ATP and NADPH. The Calvin Cycle uses these to make CA3P and Co2.
The source of energy for converting PGA (3-phosphoglycerate) into PGAL (3-phosphoglyceraldehyde) during the light-independent reactions of photosynthesis is ATP (adenosine triphosphate) and NADPH (reduced nicotinamide adenine dinucleotide phosphate) generated during the light-dependent reactions. These high-energy molecules provide the necessary energy and reducing power to drive the conversion of PGA to PGAL.