ELI5: Explain Like I'm 5

Hemoprotein

Alright kiddo, have you ever heard of a protein? No, I don't mean the yummy, cheesy pizza topping. I mean the tiny particles inside your body that help make you work properly.

Well, there's a special kind of protein called a hemoprotein. This protein is made up of a part called heme, which helps carry oxygen around your body. You know how we need oxygen to breathe and move and do everything, right?

So, this hemoprotein is kind of like a superhero carrying oxygen wherever it's needed. It's found in our blood, in our muscles and even in some other animals like whales and insects.

And get this, some hemoproteins even change color when they carry oxygen! Remember how you can change the color of a mood ring by putting it on your finger? These proteins do something similar. When they're carrying oxygen, they're bright red. And when they're not carrying oxygen, they're blue or purple.

So, hemoproteins are like special helpers in our body, carrying oxygen and changing colors to show us how they're doing. Isn't that amazing?