separates cell contents from environment prevents materials from passing through facilitates entrance and exit of materials.
passive transport
diffusion (osmosis and dialysis)
essential to cell survival
cells have to be selectively permeable
cell membrane is very necessary
passive transport
doesn't require energy
oxygen and water gets into cell
hypertonic - concentrated concentration (has everything)
hypotonic - sad version of hypertonic
isotonic - when concentration is same on both sides
channel proteins allow passage that allows water to go through. (aquaporin)
ATP (adenosine tri-phosphate) - very important chemical (active transport)
sodium potassium pump - protein for active transport (channel protein that is active)
electrochemical gradient (inside normally more negative tun outside)
to get the energy to do this, it breaks ups a molecule of atp.
vesicular transport.
receptor mediated endocytosis.
separates cell contents from environment prevents materials from passing through facilitates entrance and exit of materials.
passive transport
diffusion (osmosis and dialysis)
essential to cell survival
cells have to be selectively permeable
cell membrane is very necessary
passive transport
doesn't require energy
oxygen and water gets into cell
hypertonic - concentrated concentration (has everything)
hypotonic - sad version of hypertonic
isotonic - when concentration is same on both sides
channel proteins allow passage that allows water to go through. (aquaporin)
ATP (adenosine tri-phosphate) - very important chemical (active transport)
sodium potassium pump - protein for active transport (channel protein that is active)
electrochemical gradient (inside normally more negative tun outside)
to get the energy to do this, it breaks ups a molecule of atp.
vesicular transport.
receptor mediated endocytosis.
separates cell contents from environment prevents materials from passing through facilitates entrance...