Photosynthesis is a process by which green plants, algae and some bacteria convert light energy into chemical energy. During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose¹³. 

The process of photosynthesis can be divided into two stages: **light-dependent reactions** and **light-independent reactions**². The light-dependent reactions occur in the thylakoid membrane of chloroplasts and involve capturing light energy to produce ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate), which are used to power the light-independent reactions⁵. The light-independent reactions occur in the stroma of chloroplasts and involve using ATP and NADPH to convert CO2 into glucose⁵.

I hope that helps! Let me know if you have any more questions.

Source: Conversation with Bing, 3/22/2023(1) Photosynthesis - National Geographic Society. https://www.nationalgeographic.org/encyclopedia/photosynthesis/ Accessed 3/22/2023.
(2) Photosynthesis - National Geographic Society. https://www.nationalgeographic.org/encyclopedia/photosynthesis/ Accessed 3/22/2023.
(3) Photosynthesis | Definition, Formula, Process, Diagram, Reactants .... https://www.britannica.com/science/photosynthesis Accessed 3/22/2023.
(4) How Does Photosynthesis Work? | Sciencing. https://sciencing.com/how-does-photosynthesis-work-13714442.html Accessed 3/22/2023.
(5) Photosynthesis: What is it and how does it work?. https://www.sciencefocus.com/nature/how-does-photosynthesis-work/ Accessed 3/22/2023.