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

WITHOUTWITHOUT USING ENERGY USING ENERGY

DOWN HILLDOWN HILL

DIFFUSIONDIFFUSION

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

Uses O energyUses O energy thru a membranethru a membrane

DIFFUSIONDIFFUSION(CONTINUED)(CONTINUED)

DIFFUSIONDIFFUSION(CONTINUED)(CONTINUED)

WHAT IS A SOLUTION?WHAT IS A SOLUTION?WHAT IS THE SOLUTE?WHAT IS THE SOLUTE?WHAT IS THE SOLVENT?WHAT IS THE SOLVENT?

SOLUTIONSOLUTION

A mixture that is consistent throughoutA mixture that is consistent throughout

Example salt waterExample salt water

SOLUTESOLUTE

A SUBSTANCE THAT DISSOLVESA SUBSTANCE THAT DISSOLVESIN A SOLUTIONIN A SOLUTION

– Example: SALT in Salt WaterExample: SALT in Salt Water

SOLVENTSOLVENT

A Substance in which a solute dissolves in A Substance in which a solute dissolves in a solutiona solution

Example: the WATER in a solutionExample: the WATER in a solution

OSMOSISOSMOSISMOVEMENT OF WATER MOVEMENT OF WATER ACROSS A MEMBRANEACROSS A MEMBRANE

OSMOSISOSMOSIS(CONTINUED)(CONTINUED)

SALT SALT SUCKSSUCKS

OSMOSISOSMOSIS(CONTINUED)(CONTINUED)

HYPOTONIC SOLUTIONHYPOTONIC SOLUTION– WATER CONCENTRATION lowerWATER CONCENTRATION lower– and and – SALT CONCENTRATION IS higherSALT CONCENTRATION IS higher

– WATER WILL MOVE INTO THE CELLWATER WILL MOVE INTO THE CELL

OSMOSISOSMOSIS(CONTINUED)(CONTINUED)

HYPERTONIC SOLUTIONHYPERTONIC SOLUTION– WATER CONCENTRATION higherWATER CONCENTRATION higher– ANDAND– SALT CONCENTRATION IS lowerSALT CONCENTRATION IS lower

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

OSMOSISOSMOSIS(CONTINUED)(CONTINUED)

ISOTONIC SOLUTIONISOTONIC SOLUTION

–WATER CONCENTRATION WATER CONCENTRATION SAME ON BOTH SIDES OF SAME ON BOTH SIDES OF THE MEMBRANETHE MEMBRANE

OSMOSISOSMOSIS(CONTINUED)(CONTINUED)

TURGID = SWOLLEN

LYSED = BREAK

FLACCID = NOT FIRM

SHRINK

FACILITATED DIFFUSIONFACILITATED DIFFUSIONMaterials too large to sift thru Materials too large to sift thru

the heads and tails of the the heads and tails of the membrane.membrane.

Needs to go in thru the Intrinsic Needs to go in thru the Intrinsic protein channels.protein channels.

Still uses NO energyStill uses NO energyIt is still diffusionIt is still diffusion

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

UP HILLUP HILL

ACTIVE TRANSPORTACTIVE TRANSPORT(CONTINUED)(CONTINUED)

EXAMPLE: EXAMPLE: SODIUM-POTASSIUM SODIUM-POTASSIUM PUMPPUMP

MOVEMENT GLUCOSE INTO MOVEMENT GLUCOSE INTO CELL: TYPCIALLY, CELL: TYPCIALLY, CONCENTRATION WILL BE CONCENTRATION WILL BE GREATER IN CELLGREATER IN CELL

Na+ MOVED AGAINST CONCENTRATION GRADIENT

ENDOCYTOSISENDOCYTOSIS

MOVEMENT OF

TAKING

MATERIAL INTO THE CELL

PhagocytosisPhagocytosis

Cell EatingCell Eating Taking FOOD into the cellTaking FOOD into the cell

PinocystosisPinocystosis

Cell DrinkingCell Drinking

Taking liquid in the cellTaking liquid in the cell

EXOCYTOSISEXOCYTOSIS

MOVEMENT OFMOVEMENT OF

TAKINGTAKING

MATERIAL MATERIAL OUTOUT OF THE OF THE CELLCELL