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NBHBCh5Gaudette

QuestionAnswer
Turgor Pressure internal pressure exerted on the cell membrane from the vacuole that keeps the plant rigid
Osmosis movement of water across a permeable membrane
Membrane Potential difference in electrical charge of the inside and outside of cell
isotonic, hypotonic, hypertonic? isotonic- same solute hypotonic- weaker solute concentration hypertonic- stronger solute concentration
Carrier Protein protein that binds to transported substances- allow travel in and out of the cell
process of the sodium potassium pump 3 NA+ and 1 ATP bind to the protein pump- AT hydrolosis changes protein's shape- shape change releases NA+ and allows K to bind and make phosphate
tight junction tightly sealed- does not allow matter to flow between- found in epitheleal cells
exocytosis when material in vacuoles is released through the cell membrane out of the cell
selective permeability allows some substances to pass through while restricting others
Aquaporins transport proteins through osmosis
uniports, symports, antiports? uniports- move single substance in one direction symports- two substances in the same direction antiports- two substances in opposite directions
passive/active transport? passive-energy is not needed to move substances through a membrane active-energy is needed for larger molecules
desmosomes found in eukaryotic animal cells- allows material to pass through- protein
receptor mediated endycytosis receptor protein binds to a ligand and forms a coating around molecule- brings into cell
cell recognition/adhesion? important processes in the cell membrane
glycoprotein helps with cell adhesion
Active Transport diffusion across a membrane where energy is needed
simple/facilitated diffusion simple- small molecules through a membrane facilitated- large molecules (both no energy)
diffusion random movement of molecules to achieve isotonic
plasmodesmata plant cells-uses integral proteins- information channel
phago/pinocytosis? phago-eating pino-drinking
Created by: 828359126
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