Diffusion And Osmosis Flashcards
1
Q
What is a selectively permeable membrane?
A
Allows some but not all molecules to pass through
2
Q
What is diffusion?
A
Is the spreading out of molecules from a region of high concentration to a region of low concentration
3
Q
What is osmosis?
A
Is the movement of water molecules across a semi permeable membrane from a region of high water concentration to a region of low water concentration
4
Q
What is turgor?
A
Is the outward pressure of the cytoplasm and vacuole against the cell wall of a plant
5
Q
What is amoeba?
A
Survives in a less concentrated environment because of its contractile vacuole which eliminates water
