light reaction

• Première étape de la photosynthèse au cours de laquelle l'énergie lumineuse est absorbée par la chlorophylle et convertie en énergie chimique, produisant de l'ATP et du NADPH.

The initial stage of photosynthesis in which light energy is absorbed by chlorophyll and converted into chemical energy, producing ATP and NADPH.

1. Photosynthesis stageC1formal

   The first stage of photosynthesis where light energy is converted into chemical energy (ATP and NADPH).

   Phase claire de la photosynthèse

   • The light reaction occurs in the thylakoid membranes of chloroplasts.
   • During the light reaction, water molecules are split to release oxygen.
   • ATP and NADPH produced in the light reaction are used in the Calvin cycle.