movement thru a membrane pkt
DESCRIPTION
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TYPE OF MOVEMENT PICTURE DESCRIPTION
PHAGOCYTOSIS A type of endocytosis in which large particles are taken in by the cell
ENDOCYTOSIS The process of taking material into the cell by means of pockets in the membrane
EXOCYTOSIS The removal of large amounts of materials from a cell
PINOCYTOSIS A process by which certain cells can engulf and incorporate droplets of fluid
TYPE OF MOVEMENT
PICTURE WHAT MOVES? CONCENTRATION GRADIENT
ENERGY REQUIRED?
DIFFUSION PARTICLES IN WATER
HIGH TO LOW
NO
OSMOSIS WATER MOLECULES ONLY
HIGH TO LOW
NO
FACILITATED DIFFUSION
CARRIER PROTEINS MOVE MOLECULES ACROSS CELL MEMBRANE
HIGH TO LOW
NO
ACTIVE TRANSPORT
CARRIER PROTEIN USES ATP TO MOVE MOLECULES ACROSS CELL MEMBRANE
LOW TO HIGH
YES