Okay, so why does this matter on a Tuesday morning? Because it changes how you see everything. When you bite into an apple, you’re eating a bunch of rectangular cells with solar panels that are still full of water. That crunch is the cell walls breaking. You’re a giant demolition crew inside a microscopic city.
When you cook vegetables, you’re actually softening those tough cell walls. That’s why raw broccoli is crunchy and cooked broccoli is mushy—heat destroys the structure. And when you eat meat, you’re devouring squishy, blobby animal cells that had no walls. That’s the difference between a carrot and a steak.
It also explains why some foods are green. Spinach is green because of all those chloroplasts. Your skin? Not so much. You can’t photosynthesize, so you have to eat plants (or animals that ate plants) to get your energy. The whole food chain starts with those little solar-paneled cells.