Solution:

The following are important events and end products of the light reaction. It’s crucial to note that these events are listed in the order in which scientists discovered them, not in the order in which they occurred.

• Light Absorption: The Light Harvesting Complex(LHC) is in charge of light absorption. All pigments (save one molecule of chlorophyll a) form a light collecting mechanism in each photosystem. The antennas are another name for these pigments. These pigments absorb light of various wavelengths, increasing the efficiency of the system. The reaction centre of a chlorophyll molecule is a single chlorophyll molecule.
• Water Splitting: Sunlight energy is used to divide water molecules into hydrogen ions and oxygen. After the split, the extra electron is used to convert NADI+ to NADPH.
• Oxygen Release: After the water molecule splits, oxygen is released through the stomata.
• Formation of High Energy Intermediates (ATP and NADPH): Two energy-rich molecules, ATP and NADPH, are generated at the end of the light process.