MOVING MOVING MATERIALS INTO MATERIALS INTO

AND OUT OF CELLSAND OUT OF CELLS

MATERIAL MOVEMENT

PASSIVE

TRANSPORT

ACTIVE

TRANSPORT

PASSIVE TRANSPORT

DIFFUSION OSMOSIS

PASSIVE TRANSPORTPASSIVE TRANSPORT

PARTICLES PASSING THROUGH PARTICLES PASSING THROUGH THE CELL MEMBRANETHE CELL MEMBRANE

WITHOUTWITHOUT USING ENERGY USING ENERGY

DIFFUSIONDIFFUSION

MOVEMENT FROM AN AREA MOVEMENT FROM AN AREA OF HIGHER CONCENTRATION OF HIGHER CONCENTRATION TO AN AREA OF LOWER TO AN AREA OF LOWER CONCENTRATIONCONCENTRATION

DIFFUSIONDIFFUSION(CONTINUED)(CONTINUED)

DIFFUSIONDIFFUSION(CONTINUED)(CONTINUED)

WHAT IS THE SOLUTE?WHAT IS THE SOLUTE?WHAT IS THE SOLVENT?WHAT IS THE SOLVENT?WHAT IS EQUILIBRIUM?WHAT IS EQUILIBRIUM?

OSMOSISOSMOSISMOVEMENT OF WATER MOVEMENT OF WATER ACROSS A MEMBRANEACROSS A MEMBRANE

OSMOSISOSMOSIS(CONTINUED)(CONTINUED)

RESULT OF OSMOSIS IS RESULT OF OSMOSIS IS EXTRA MOLECULES EXTRA MOLECULES COLLECT ON ONE SIDE OF COLLECT ON ONE SIDE OF THE MEMEBRANETHE MEMEBRANE

PRESSURE EXERTED BY PRESSURE EXERTED BY WATER MOLECULES IS WATER MOLECULES IS OSMOTIC PRESSUREOSMOTIC PRESSURE

OSMOSISOSMOSIS(CONTINUED)(CONTINUED)

HYPOTONIC SOLUTIONHYPOTONIC SOLUTION

–WATER CONCENTRATION WATER CONCENTRATION HIGHER IN ENVIRONMENT HIGHER IN ENVIRONMENT THAN IN CELLTHAN IN CELL

–WATER WILL MOVE INTO THE WATER WILL MOVE INTO THE CELLCELL

OSMOSISOSMOSIS(CONTINUED)(CONTINUED)

HYPERTONIC SOLUTIONHYPERTONIC SOLUTION

–WATER CONCENTRATION WATER CONCENTRATION LOWER IN ENVIRONMENT LOWER IN ENVIRONMENT THAN IN CELLTHAN IN CELL

–WATER WILL MOVE OUT OF WATER WILL MOVE OUT OF THE CELLTHE CELL

OSMOSISOSMOSIS(CONTINUED)(CONTINUED)

ISOTONIC SOLUTIONISOTONIC SOLUTION–WATER CONCENTRATION WATER CONCENTRATION

SAME ON BOTH SIDES OF SAME ON BOTH SIDES OF THE MEMBRANETHE MEMBRANE

–WATER MOLECULES WILL WATER MOLECULES WILL MOVE INTO THE CELL AT MOVE INTO THE CELL AT THE SAME RATE AS THEY THE SAME RATE AS THEY MOVE OUTMOVE OUT

OSMOSISOSMOSIS(CONTINUED)(CONTINUED)

TURGID = SWOLLEN

LYSED = BREAK

FLACCID = NOT FIRM

SHRINK

FACILITATED DIFFUSIONFACILITATED DIFFUSION

MEMBRANE MEMBRANE CONTROLSCONTROLS WHAT CROSSESWHAT CROSSES

MEMBRANE IS REFERRED MEMBRANE IS REFERRED TO AS TO AS SELECTIVELY SELECTIVELY PERMEABLEPERMEABLE

ACTIVEACTIVETRANSPORTTRANSPORT

ACTIVE TRANSPORTACTIVE TRANSPORT

ENERGYENERGY IS USED TO MOVE IS USED TO MOVE MATERIAL ACROSS THE MATERIAL ACROSS THE MEMBRANEMEMBRANE

USUALLYUSUALLY FROM AREA OF FROM AREA OF LESSER CONCENTRATION TO LESSER CONCENTRATION TO AREA OF GREAT AREA OF GREAT CONCENTRATIONCONCENTRATION

ACTIVE TRANSPORTACTIVE TRANSPORT(CONTINUED)(CONTINUED)

EXAMPLE: EXAMPLE: SODIUM-SODIUM-POTASSIUM PUMPPOTASSIUM PUMP

MOVEMENT GLUCOSE MOVEMENT GLUCOSE INTO CELL: TYPCIALLY, INTO CELL: TYPCIALLY, CONC WILL BE GREATER CONC WILL BE GREATER IN CELLIN CELL

Na+ MOVED AGAINST CONCENTRATION GRADIENT

ENDOCYTOSISENDOCYTOSIS

MOVEMENT OF MATERIAL INTO THE CELL

EXOCYTOSISEXOCYTOSIS

MOVEMENT OF MATERIAL MOVEMENT OF MATERIAL OUT OF THE CELLOUT OF THE CELL

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