hydrophilic head made of _____
What makes up the majority of the cell membrane?
hydrophobic tail made out of ________
__________________ - keeps cell membrane flexible
_________________ (attached to proteins or lipids) - have "antenna" to help cells identify or recognize other cells
low concentration = ____________ solutes
allows only certain substances to pass through
concentration gradient
_____________________= molecules are spread equally, the same concentration on either side of the membrane
_______________________=number of molecules in an area per unit of volume
protection
solutes and solvent together make a _____________
regulation
Molecules dissolved in a liquid =
What are the major functions of the cell membrane?
High concentration = ______________ solutes
liquid/fluid dissolving them =
________________ bring materials into the cell and receive signals from outside the cell
solvent
selective permeability
fewer
equilibrium
solutes
protection and regulation
protects the cell from the outside environment
phosphates
proteins
cholesterol
solution
fatty acids
phospholipids
carbohydrates
controls what can enter and exit the cell
concentration
more