The reaction is a phase in photosynthesis in which light is absorbed by the photosystems of plants.

calvin cycle

light-dependent

combustion

chemical

dark reaction

Light-Dependent

Explanation:

The reaction taking place in the chloroplast in which the absorption of a photon leads to the formation of Atp and Nadph.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.