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Chapter 7-3 Movement Through the Membrane
osmosis, diffusion, etc..
15
Biology
10th Grade
11/02/2010

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Term
Endocytosis
Definition
movement of membrane inward ( taking in molecules)
Term
Exocytosis
Definition
movement of membrane outward
(moving molecules out!)
Term
Phagocytosis
Definition
movemant of matter by the cell
Term
Facilitated Diffusion
Definition
Movement of matter through the protein channel
Term
Active transport
Definition
movement of material from low to high concentration, uses energy .. (endo, exo, phago)
Term
Osmosis
Definition
Diffusion of water through a cell membrane.. uses no energy
Term
Diffusion
Definition
process of molecules moving from high to low concentartion .. uses no energy
Term
Hypotonic
Definition
more concentration on the outside of the cell. ... More H20 in it but less solute....
Term
Hypertonic
Definition
more concentration on the inside so the cell shrinks..... less h20 but more solute
Term
Equilibrium
Definition
equal concentration on both sides
Term
Cell Membrane
Definition
regulates movement of matter, gives cell its shape, made up of lipid bilayer
Term
Concentration
Definition
Amount of solute dissolved in a solution
Term
Osmotic Pressure
Definition
Osmosis produces pressure on the hypertonic side of a selectively permeable membrane
Term
Why wouldn't a plant cell burst if put up with osmotic pressure?
Definition
It's Cell Wall
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