Cell Transportation Flashcards
Passive Transport
Transportation of molecules in and out of a cell without needing ATP energy
- Osmosis
- Diffusion
- Facilitated Diffusion
Osmosis
The movement of water molecules in and out of a cell
- Hypertonic
- Hypotonic
- Isotonic
Hypertonic Solution
Water moves out of the cell
- Higher concentration inside the cell than outside the cell
Hypotonic Solution
Water moves into the cell
- Higher concentration outside the cell than inside the cell
Isotonic Solution
Water moves both into and out of the cell
- Concentration inside and outside the cell is equal
Diffusion
Movement of molecules from a high concentration area to a low concentration area
Facilitated Diffusion
Passive Transport that uses carrier proteins to break down large substances from high to low concentration
Concentration Gradient
The difference between the amount of a substance in one area and the amount on an adjacent area
- Passive Transport = Down the gradient
- Active Transport = Up the gradient
Active Transport
The movement of molecules in and out of a cell that requires energy
- Pinocytosis
- Phagocytosis
Pinocytosis
Cell drinking
- Movement of liquid into a cell
Phagocytosis
Cell eating
- Movement of nutrients and food into a cell
Bulk Transport
Movement of molecules into a cell that requires energy
Exocytosis
Movement of molecules out of a cell that requires energy
Endocytosis
Movement of molecules into a cell that requires energy
