Cell Membrane Crossward Flashcards
These molecules might have trouble crossing the membrane and will require the help of transport proteins
Polar molecules - because cannot go through directly because of phospholipid bilayer
This condition occurs when too much water enters a cell and the cell bursts
Cytolysis
The pressure of water inside a plant cell
Turgor pressure
Materials tend to move from an area of ____ concentration to an area of _____ concentration
High to low
Found in the cell membrane to aid the passage of certain polar molecules
Transport proteins
A balance the cell maintains
Homeostasis
The membrane is said to be _____ permeable
Selectively
The movement of cells through protein channels
Facilitated diffusion because needs help of protein channels
The difference between the amount of solutes and solvent that may exist on opposite sides of the membrane
Concentration gradient
The engulfing of large proteins into the cell
Phagocytosis
When are protein pumps used
To move small molecules across the membrane
Endocytosis:
Process of taking matieral into the cell by means of infoldings/pockets of the cell membrane
The type of lipids found in the cell membrane
Phospholipids
The movement of water from an area of high concentration to low
Osmosis (because it is water)
Cellular drinking:
Pinocytosis
