Humans and the Possibility of Photosynthesis

Intro For as long as humans have lived, we have been breathing. Inhaling oxygen

and exhaling carbon dioxide to make energy. But what if there was another way?

What if humans could photosynthesise? Part 1: What is photosynthesis? Now,

most of us know that plants only really need sun and water to grow, but why is it that

way? Unlike animals, which get energy from breaking down nutrients from food

into glucose, then turning that into Adenosine Triphosphate (ATP), the main energy

source for all life, plants use cells called Chloroplasts to turn carbon dioxide, an electron donor

(usually water), and light to form glucose and ATP. Now, plants have a few