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Question | Answer |
---|---|
What does hyptonic mean? | lower concentration |
what does hypertonic mean? | higher oncentration |
what is a cell membrane? | thin flexible barrier; separates cell from surroundings |
what is a cell wall? | supporting layer arond the membrane |
what is a Lipid Bilayer? | gives cell membranes a flexible structure that froms a barrier |
what is equilibrium? | concentration of the solute is the same throughout a system |
what is osmosis? | the diffusion of water through a selectivelypermeable membrane |
What is the difference between osmosis and diffusion? | Osmosis is diffusion, just through a selectively permeable membrane (cell membrane) |
what does exocytosis mean? | things exiting the cell |
what does isotonic mean? | concentration of water & sugar on both sides of membrane |
what does diffusion mean? | particles move from an area of high concentration to low |
what does endocyctosis mean? | things entering the cell? |
what does a protein channel do? | it allows specific molecules to move across the cell membrane? |
active transport requires what? | energy |
phagocytosis means what? | to eat:movement of food |
pinocyctosis means what? | to drink: movement of liquids |