Diffusion And Osmosis Flashcards
Selective permeable Membrane
Allows some nut not all molecules through
What are biological membranes
Selectively permeable
What do selective permeable membranes allow pass through
Water oxygen carbon dioxide
What is diffusion
Spreading out of molecules from a region of high concentration to low
What is osmosis
Movement of water molecules across a semi permeable membrane from high water concentration to low
What do animal cells have the same concentration as
Cytoplasm
An example of a ph organism that in osmosis the molecules go into it?
Amoeba
What do amoeba have to prevent bursting
Vacuoles
What happens to a plant cell when it’s in a more concentrated solution
Is can dry up and die
What gives plants great strength
Turgur pressure
What is turgor pressure
Outward pressure of cytoplasm and vacuole against cell wall
What is the name for the loss of molecules Ina plant cell due to osmosis
Plasmolysis
Osmosis and food preservation
Fish or meat may be soaked Ina salty solution and any microorganisms die
Preserves fruit