Transport Across The Plasma Membrane Exercise 5

Front 1

ACTIVE PROCESSES

Back 1

REQUIRE ATP TO TRANSPORT SUBSTANCES ACROSS THE PLASMA MEMBRANE.

Front 2

PASSIVE PROCESSES

Back 2

DO NOT REQUIRE CELL TO EXPEND ENERGY BECAUSE THE KINETIC ENERGY OF THE PARTICLES CAUSES THEM TO MOVE FROM AN AREA OF THEIR HIGHER CONCENTRATION TO AN AREA OF THEIR LOWER CONCENTRATION.

Front 3

DIFFUSION

Back 3

THE MOVEMENT OF MOLECULES OR IONS DOWN A CONCENTRATION GRADIENT DUE TO THEIR KINETIC ENERGY UNTIL THEY REACH EQUILIBRIUM

Front 4

IONS

Back 4

AN ATOM THAT HAS A POSITIVE OR NEGATIVE CHARGE BE CAUSE IT HAS UNEQUAL NUMBERS OF PROTONS AND ELECTRONS.

Front 5

CONCENTRATION GRADIENT

Back 5

INDICATES THERE IS A DIFFERENCE IN THE CONCENTRATION OF MOLECULES OR IONS INSIDE THE CELL (INTRACELLULAR) COMPARED TO OUTSIDE THE CELL (EXRACELLULAR).

Front 6

OSMOSIS

Back 6

THE DIFFUSION OF A SOLVENT (DISSOLVING MEDIUM WHICH IS WATER IN LIVING ORGANISMS) ACROSS A SEMIPERMEABLE MEMBRANE THAT OCCURS IN RESPONSE TO DIFFERENCES IN SOLUTE ( SUBSTANCE DISSOLVED IN SOLVENT) CONCENTRATIONS; WATER DIFFUSES FROM AN AREA OF HIGHER WATER CONCENTRATION (LOWER SOLUTE CONCENTRATION) TO AN AREA OF LOWER WATER CONCENTRATION (HIGHER SOLUTE CONCENTRATION

Front 7

SEMIPERMEABLE

Back 7

Allowing passage of certain, especially small, molecules or ions but acting as a barrier to others. Used of biological and synthetic membranes.

Front 8

PERMEABLE

Back 8

HAVING PORES OR OPENINGS THAT PERMIT LIQUIDS OR GASES TO PASS THROUGH A MEMBRANE.

Front 9

DIALYSIS MEMBRANES

Back 9

HAVE SMALL PORES THAT ALLOW WATER AND SMALL PORES THAT ALLOW WATER AND SMALL SOLUTES TO CROSS. IN EXPERIMENT PORES ARE LARGE ENOUGH TO ALLOW DIFFUSION OF SUCROSE AND RED DYE MOLECULES IN AND OUT OF DIALYSIS MEMBRANE.

Front 10

HYPOTONIC

Back 10

LOWER SOLUTE CONTENT OFSOLUTES