1. Cell Transport

2. Diffusion
Passive Transport uses the principal of diffusion to effortlessly pass through the cell membrane this can also use a protein channel which then is called facilitated diffusion
Diffusion is basically the principal that something with more of a concentration goes to something with less

3. Osmosis
Now instead of imagining things floating in water imagine it reversed with water floating in between lots or little bits of solid that are magnetic
That magnetic pull allows more water to move towards them, however if it is across a screen-like membrane that allows only water to pass through it is known as osmosis
Water will travel from low to high concentration of solute or the flipside which is high concentration of water to where there it can space itself out more around different atoms dissolved into it

4. Osmosis

5. Osmosis in Cells
So the water and liquids flow in and out of cells besides the small solids they take in or spit out
Water/fluid is osmosis
Solids is diffusion which we will get to in a bit

6. So Now for the Solids like K or Na
Diffusion is one way of getting solids into the cell as the example showed for facilitated diffusion
Against the concentration gradient is known as active transport: it requires an enzyme that needs energy and in some cases a molecule to trade in place of the one being taken in

7. Active Transport with Ex.

8. Other Ways of Getting Material into a Cell involve the process ENDOCYTOSIS
All of these are methods for the cell to basically eat. You need to know these types of active cell digestion
If particles too large to fit into transport proteins require ENDOcytosis types
If the cell was to spit these vacuole/vesicles out it would be EXOcytosis