bio

Photosynthesis

The process by which plants use light to assemble CO₂ and water into sugar — making their own food out of thin air. It comes in two halves: a light-requiring half that catches photons and converts their energy into chemical currency, and a second half that spends that currency attaching carbon atoms one at a time onto a molecular scaffold. Nearly every food chain on Earth begins here. Note that plants also respire around the clock, just as you do; photosynthesis is a second layer of work stacked on top, running only in the light.