During photosynthesis, radiant energy (light energy) is turned into chemical energy stored in the bonds of glucose.

Here's how it works:

1. Light energy is absorbed by chlorophyll and other pigments in the chloroplasts of plant cells.

2. This light energy is used to split water molecules, releasing electrons and producing oxygen as a byproduct.

3. The electrons are then used to power the production of ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate).

4. ATP and NADPH are used to convert carbon dioxide into glucose, a sugar molecule that stores chemical energy.

So, the radiant energy of sunlight is ultimately converted into the chemical energy of glucose, which plants can then use for growth and other metabolic processes.