cell transport quiz

membrane proteins

recognize and communicate other cells

cholestrol

builds, structure cell membrane and flexibility

transport protein

helps substances move across the cell membrane

receptor protein

receives communication from other cells

concentration gradient

the difference between the concentration on both sides of a membrane

movement by carrier protein

only one that goes from low to high gradient, pumps/carriers pull in/out substances

endocytosis

pulls things into the cell

pinocytosis

small molecules into cell, liquids

phagocytosis

large molecules into cell, solids

exocytosis

substances leaving the cell

diffusion

movement of molecules from high to low concentration

osmosis

water movement across membrane

hypertonic

the solution (outside) has more water

hypotonic

the solution (outside) has less water

turgor pressure

the pressure on cell walls that cell membrane makes when there is movement across it

facilitated diffusion

big molecules move through channel proteins across the cell membrane

diffusion example

lungs and alveoli

facilitated diffusion example

glucose across cell membrane

protein pump example

neuron

endocytosis example

wbc taking in bacteria or paramecium taking amoeba

exocytosis example

neuron sending out neurotransmitters or golgi packaging proteins to send out of the cell