Membrane
structure
and
function
Membrane Diffusion
Proteins
Osmosis
Exocytosis
and
endocytosis
100 100 100 100 100
200 200 200 200 200
300 300 300 300 300
400 400 400 400 400
500 500 500 500 500
Lipid bilayer
Fluid Mosaic Model
2, lipids, and phospholipids
True
A phosphate-containing head and two
fatty acid tails attached to a glycerol
backbone.
-Serves as a boundary between the outside environment
and the inside of the cell
-gives form and shape to cells
- Can connect on cell to two or more adjacent cells
- -helps vesicles form
- (other answers may be acceptable)
Adhesion proteins
Communication Proteins
Receptor Proteins
Recognition Proteins
Transport Proteins
Diffusion
It has selective permeability
Down
Yes
The gradient’s steepness, molecular size,
temperature, and electric or pressure
gradients that may be present.
Osmosis
hypotonic
hypertonic
Isotonic
Osmotic pressure
Exocytosis
endocytosis
Cell eating
yes
Move large packets of materials
across a plasma membrane.