Question

write the definition of photosynthesis here.

Explanation:

Photosynthesis is the process by which green plants, algae, and some bacteria use sunlight, carbon dioxide ($\ce{CO_2}$), and water ($\ce{H_2O}$) to synthesize organic compounds (like glucose, $\ce{C_6H_{12}O_6}$) and release oxygen ($\ce{O_2}$). The general chemical equation is $6\ce{CO_2} + 6\ce{H_2O} \xrightarrow[\text{Chlorophyll}]{\text{Light Energy}} \ce{C_6H_{12}O_6} + 6\ce{O_2}$. It occurs in chloroplasts and involves two main stages: the light - dependent reactions (where light energy is converted to chemical energy in the form of ATP and NADPH) and the light - independent reactions (Calvin cycle, where carbon dioxide is fixed into glucose using the energy from ATP and NADPH).

Answer:

Photosynthesis is the process by which green plants, algae, and some bacteria utilize light energy (from the sun), carbon dioxide, and water to produce glucose (a type of sugar) and oxygen. The overall chemical reaction is $6\ce{CO_2} + 6\ce{H_2O} \xrightarrow[\text{Chlorophyll}]{\text{Light}} \ce{C_6H_{12}O_6} + 6\ce{O_2}$, occurring in chloroplasts with light - dependent and light - independent (Calvin cycle) stages.