How is protein synthesized and displayed on the cell surface?

Proteins are made inside cells and sometimes get worn on the outside like a costume.

Imagine your cell is like a tiny factory that builds clothes for its neighbors. The clothes are proteins, and they start as threads called mRNA. These threads come from a blueprint in the cell's kitchen, which is written in DNA.

First, the factory takes the mRNA thread and weaves it into a protein on a special machine called a ribosome. This part is like having a sewing machine that turns thread into fabric, only instead of fabric, you get a protein!

Once the protein is made, it gets dressed up in a kind of bubble called a vesicle, and then it travels to the cell's surface through a membrane, just like a delivery truck driving from one street to another.

Finally, the bubble pops, and the protein is displayed on the outside of the cell like a sticker or a badge. That’s how cells show off their work to other cells around them!