🚀 Big Idea: Cells are like tiny factories with their own transport system. This system includes little sacks called vesicles that move stuff around.

• A vesicle is like a mini-bubble. It’s made of a membrane with a droplet inside.
• They're like the delivery vans of a cell.
• Reason they move & shape-shift? The membrane is fluid!

• Making

  • A membrane area is pinched off to form a vesicle. Imagine pinching off a piece of dough to make a ball.
  • Need energy? Yes, ATP is the cell's currency for this.

• Breaking

  • They can fuse with another membrane & release their contents.
  • Kinda like a delivery van dropping off a package.

• Think of it as the cell's "eating" method.

• Vesicles pinch from the plasma membrane and capture external material.

  • Real-world example: It's like when you use a net to catch fish.

• What's for dinner?

  • Water, solutes, big molecules that can’t just walk through the plasma membrane.
  • For example, unborn babies get proteins (like antibodies) from mom via this process.
  • Amoeba and Paramecium, those single-celled critters, "eat" big food particles this way.
  • White blood cells? They "eat" harmful bacteria & viruses! It's like a tiny police force inside your body.