Lesson 3 - Physicochemical properties of the cell Flashcards
Substance move across a cell membrane without energy by the cell
Passive Transport
Passive Transport
transport that is not ATP driven, high to low concentration
Types of passive transport
Diffusion, Osmosis, Facilitated Diffusion
Osmosis, types of solution
Isotonic, Hypotonic, Hypertonic
Diffusion
net movement of particles along a concentration gradient from an area of high concentration to low concentration
Osmosis
net movement of water by diffusion through a selectively permeable membrane
Isotonic
equal rate movement of water molecules in and out of the cell
Hypotonic
Outside solute concentration is lower than the inside solute concentration
Water moves into the cell
Hypotonic
Hypotonic ____
swells
Hypertonic
Outside solute concentration is higher than the inside solute concentration
Water moves out of the cell
Hypertonic
Hypertonic _______/______
plasmolyzed/shrinks
Facilitated Diffusion
Uses transport protein to move to high to low concentration
Molecules move through a transport protein but now uses energy to move against their concentration gradient
Active transport