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Mrs. Leshay's Bio Unit 10 Vocab
BLARRGGhhh
21
Biology
11th Grade
02/04/2010

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Term
Fluid Mosaic Model
Definition
The cell membrane; it's fluidic and constantly moving
Term
Phospholipids Bilayer
Definition
The thin layer of phospholipids that make up the cell membrane ---> "The two-tailed sperm"-esque things.
Term
Hydrophobic
Definition
Afraid of water
Term
Hydrophilic
Definition
Likes water
Term
Integral Proteins
Definition
proteins that are permanently attached to the membrane
Term
periferal proteins
Definition
proteins that only TEMPORARILY attach to the membrane
Term
diffusion
Definition
movement of particles from high to low concentration
Term
osmosis
Definition
diffusion of water
Term
hypotonic
Definition
less solute outside of cell than inside
Term
hypertonic
Definition
more solute outside of cell than inside
Term
isotonic
Definition
equal solute inside & outside the cell
Term
turgor pressure
Definition
force of pressure on the cell membrane from the water inside of a cell (ie a plant cell)
Term
plasmolysis
Definition
the plasma membrane pulls away from the cell wall due to osmosis
Term
cytolysis
Definition
destruction of a cell
Term
facilitated diffusion
Definition
movement across the membrane with aid of a protein membrane - cannot diffuse by itself!!!!1
Term
carrier protein
Definition
transports specific small molecules through the membrane
Term
ion channel
Definition
a gate in a membrane that allows the passage of certain types of molecules
Term
endocytosis
Definition
materials come in the cell
Term
pinocytosis
Definition
little particles come in, "cell drinking"
Term
phagocytosis
Definition
big particles come in; "cell eating"
Term
exocytosis
Definition
materials leave the cell; they EXIT
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