Movement of molecules from an area of higher concentration to an area of lower concentration, does
not require energy
facilitated diffusion
Needs help of proteins, does not require energy
osmosis
Diffusion of water through a selectively permeable membrane
What tonicity do plant cells prefer?
hypotonic
Aquaporins
water channel proteins
active transport
the movement of materials through a cell membrane using energy
types of active transport
Endocytosis (phagocytosis and pinocytosis)
Exocytosis, and Protein Pumps - Lower Concentration to Higher Concentration
cotransport
occurs when active transport of a solute indirectly drives transport of other substances
Endocytosis
process by which a cell takes material into the cell by infolding of the cell membrane
Exocytosis
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