The excitation of the pigment chlorophyll bu a photon of light so that a electron is excited to a higher energy state and enters the photosystem II.
Type of photosynthetic reaction depends on sunlight is called light reaction.
photosynthesis
In sunlight
The process described is photosynthesis, which occurs in plants and some bacteria. Photosynthesis uses sunlight to convert carbon dioxide and water into glucose (energy carrier) and oxygen. The energy from sunlight is captured by chlorophyll in plant cells and used to drive this chemical reaction.
light reaction or sunlight
probably the sunlight.............................!!!!!!!!!!!!!!!!!!!
During light dependent reactions chlorophyll and other light-aborbing molecules capture energy from sunlight.
light
Light reaction is taking place on thylakoids.Dark reaction take place in stroma.
Sunlight and water.
sunlight
Photosynthesis is an endothermic reaction because it takes energy (from sunlight) from the environment to use in the photosynthesis reaction. Without the energy input, the photosynthesis reaction could not occur.