Excitation of electrons in photosystem II.
light absorption
The first simple food prepared in the process of photosynthesis is glucose. Glucose is synthesized from carbon dioxide and water using energy from sunlight during the light-dependent reactions of photosynthesis.
cell wall
The first process in the light-dependent reactions of photosynthesis is photon absorption by chlorophyll molecules in the thylakoid membrane of the chloroplast. Absorbed photons then excite electrons in chlorophyll, initiating the transfer of these high-energy electrons through a series of protein complexes known as the electron transport chain.
The light dependent and the light independent reactions.
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
The light-dependent reactions of photosynthesis take place in the thylakoid membranes of the chloroplasts. This is where sunlight is absorbed by chlorophyll and converted into chemical energy in the form of ATP and NADPH.
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 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.
No, the light-dependent reactions in photosynthesis cannot occur without the light-independent reactions. The light-dependent reactions, which take place in the thylakoid membranes of chloroplasts, require light energy to produce ATP and NADPH. These molecules are then used in the light-independent reactions (Calvin cycle) to convert carbon dioxide into glucose. Thus, both sets of reactions are interdependent and necessary for the complete process of photosynthesis.
The first pathway of photosynthesis is the light reaction, which is the absorption of light energy from the sun by the chlorophyll in the plant. The pathway that follows this is the dark reaction or carbon fixation.
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.