Question

Which process occurs during the light dependent reaction in photosynthesis

Answer 1

The light dependent reaction uses energy instead of sunlight to produce energy-rich compounds like ATP

Answer 2

Formation of ATP and NADPH

Step-by-step explanation:

During the light reaction of photosynthesis, one molecule of each of ATP and NADPH is formed and these serve as precursor for the light-independent reaction of photosynthesis. The process occur in the chloroplast of plants and can be summarized below:

• Chlorophyll within the chloroplast absorbs light, leading to the excitement of electrons within its photosystems
• The excited electrons are released from the photosystems
• Water molecules is split to release electrons, H+ and oxygen. The electrons replace those lost by the photosystems due to excitation
• The excited electrons released by photosystems enter into the electron transfer chain and reduce NADP+ to NADPH
• The build up of H+ creates a gradient that ATP synthase enzyme uses to synthesize ATP from ADP.