Which of the following processes occurs in plants during photosynthesis?

The process of photosynthesis in plants primarily involves the conversion of carbon dioxide and water into glucose and oxygen, using light energy. During this process, carbon dioxide (CO2) is reduced, meaning that it gains electrons to form glucose (C6H12O6), a form of stored energy that the plant can use. This reduction occurs through a series of chemical reactions facilitated by chlorophyll and other pigments in the chloroplasts during the light-dependent and light-independent reactions (Calvin cycle) of photosynthesis.

The transformation can be summarized as:

[ 6 \text{CO}_2 + 6 \text{H}_2\text{O} \rightarrow \text{C}6\text{H}{12}\text{O}_6 + 6 \text{O}_2 ]

In this equation, carbon dioxide is being converted (reduced) into glucose. The production of glucose from CO2 is critical because it serves as an energy source not only for the plant itself but also for other organisms that rely on plants for energy.

The other processes listed, such as the oxidation of glucose (which refers to cellular respiration, not photosynthesis), dehydration of oxygen, and condensation of nitrogen, are not part of photos