 Hi darlings, we're back to finish up our energy sandwich and talk about the process of photosynthesis. I just found this leaf picture enchanting, so I had to include this as our intro piece, but really the intro piece for photosynthesis, just like cellular respiration, is this energy-on-earth visual. Hopefully, you're looking at this thing going, dude, seriously, again, we have to look at this exact picture again, and the answer is yes, because in lecture, what was it, seven, no, eight, we talked about energy and what it was, and so we drew this picture in lecture eight, and then lecture nine was all about cellular respiration. I warned you that we would, that your understanding of cellular respiration was gonna be clutch for this lecture in which we talk about the process of photosynthesis. Photosynthesis is cellular respiration backwards, and there's so many parts of the process where you're gonna go, oh, I get it. Oh, right. Oh, I could have anticipated that if you have cellular respiration solid in your back pocket. So honestly, at this point, I recommend if you don't have cellular respiration down, this lecture is, I think, gonna be pretty challenging. I think it's worth making sure you have that other one ready to go before you tackle this one, because photosynthesis relies on the energy from the sun, we have to spend some time talking about light. I believe in lecture eight when we talked about energy, I believe I said something like light energy, like who knows what it is, and I still hold to that. I still stand by that statement, but there are some things about light that we can talk about and will help us understand what's going on with photosynthesis, so let's get started. Let's talk about light.