Cell membrane Flashcards
what is a cell membrane
the boundary of any type of living cell regulates the movement of substances in and out of a cell
what does a cell membrane do
it contrls the movement of substances in and out of a cell
what is the fluid mosaic phospholipid
model of membranes where proteins are embedded in in the phospholid bilayer
what is a bilayer
a double layer
what is a phospholipid
a major component of the cell membranes, represented by a head and two tails
what is a hydrophilic
interact with and are dissolvable in water
what avoids association with water
hydrophobic cells
why is cholesterol important to cells
it is an essential structural component to cell membranes. stabilises and strengthens the membrane as well as regulates the membrane fluidity in animal cells
what do plant use to regulate membrane fluidity
they use phytosterol
what do lipid components provide to membranes
unique properties that are flexible and fluid allowing cells to change shape and grow
what do transport proteins assist with
they assist with the transport of certain substances to cross a cell membrane
what do channel proteins do
they are type of transport protein that are used to form a protein channel acts as a passageway to allow specific substances to cross
