Movement Across Membrane Flashcards
Diffusion
The net movement of molecules from area fo high concentration to an area of low concentration down their concentration gradient
Define osmosis
The movement of water molecules from an area of high water potential to an area of low water potential down a water potential gradient through a partially permeable membrane
Hypotonic solution
A solution that has high water potential than water potential of the cell
Hypertonic
A solution that has a lower water potential than the water potential of the cell
Isotonic
A solution has the same water potential as the water potential of the cell
Define active transport
The movement of molecules from a low concentration to a high concentration against their concentration gradient using energy from respiration