What makes up the cell membrane?
A phospholipid bilayer
What type of solution has a larger concentration of water on the
outside of the cell?
hypotonic
What type of solution has a larger concentration of water on the
inside of a cell?
hypertonic
What type of solution has an equal concentration of water on the
inside and the outside of a cell?
isotonic
What is the movement of water?
osmosis
What is the movement of small molecules from high to low?
diffusion
What is the movement of large molecules from high to low with the
help of a protein?
facilitated diffusion
What process brings food into the cell by opening up the cell
membrane (with energy)?
endocytosis
What process pushes waste out of the cell by opening up the cell
membrane? (with energy)
exocytosis
The movement of molecules from high to low is what type of transport?
passive
The movement of molecules from low to high is what type of transport?
active
What macromolecule helps to bring in large particles through the
plasma membrane?
proteins
What is this a picture of?
the plasma membrane
Look at the picture and identify the tonicity of the solution:
Hypertonic (with pic)
Look at the picture and identify the tonicity of the solution:
Isotonic (pic)
Look at the picture and identify the tonicity of the solution:
Hypotonic