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Bio cell transport

name: ______________________________
Across
Less
Taking “in” large molecules by the cell
is caused by a problem with the cell membrane.
Requires no energy!
some stuff can pass through it but not others
the same
Removing large particles (waste) from the cell Stuff “exits” the cell
Down
The movement of molecules from an area of high concentration to an area of low concentration
freshwater organisms have structures to pump out water
Requires the cell to use energy (ATP)
more
When molecules are evenly spread throughout a space
The diffusion of water across a membrane