Membrane Structure
The cell membrane mainly consists of this molecule.
Phospholipid
The cell membrane is described as this because it allows some molecules to cross and not others
Selectively permeable
This is the movement of molecules from high to low concentration.
Diffusion
This term describes a solution with equal solute concentration inside and outside the cell.
Isotonic
This transport protein allows one molecule through
Uniporter
Phospholipids have this sort of head
Hydrophilic
These are the two broad categories of membrane transport
Active, passive
This is the diffusion of water across a membrane to even out solute concentrations
Osmosis
A solution with higher solute concentration than the cell is called this.
Hypertonic
Exocytosis is the process where the cell does this
Release materials into the environment
The term "hydrophobic" means this
Dislikes water
This type of tube is used to demonstrate the osmotic ability of water to fight gravity
U-tube
Facilitated diffusion uses these to help molecules cross the membrane.
Transport protein
What happens to an animal cell in a hypotonic solution?
This molecule allows two molecules to cross the membrane in opposite directions
Antiporter
The cell membrane has this many layers
2
Endo- and exocytosis use these to transport molecules
Vesicles
This is the difference in concentration across a particular area
Concentration gradient
A cell becomes plasmolyzed in this solution
Hypertonic
This is the taking up of materials from the environment
Endocytosis
Phospholipid heads are oriented in this direction
Toward the water
This is the cell's ability to maintain its internal state against a changing environment
Homeostasis
Transport protein that allows water to cross in bulk
Aquaporin
A cell in an isotonic solution becomes this
Flaccid
This molecule allows two molecules to cross the membrane in the same direction
Symporter