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Cells
________ use energy to transport materials that can not diffuse across a membrane.
Vesicles
________ fuse with the cell membrane and releases substances outside of the cell.
Passive transport
________: The movement of molecules across a cell membrane without energy input from the cell.
Isotonic
________: When a solution has the same concentration of dissolved particles as the cell.
Materials
________ move across membranes because of concentration differences.
Water
________ flows out of the cell at a faster rate which causes the cell to shrivel.
Exocytosis
________: The release of substances out of a cell by sending materials out of the membrane through a vesicle.
Hypotonic
________: When a solution has a lower concentration of dissolved particles than a cell.
Diffusion
________ is important for moving substances across the membrane.
Hypertonic
________: When a solution has a higher concentration of dissolved particles than a cell.
Osmosis
________: The diffusion of water molecules.
Pumps
________ are transport proteins that move materials AGAINST a concentration gradient.
Phagocytosis
________: A type of endocytosis where the cell membrane surrounds large particles.
Endocytosis
________: The process of taking liquids or fairly large molecules into a cell by surrounding them in a membrane.
Concentration gradient
________: The difference in concentration of a substance from one location to another.
Active transport proteins
________ move the molecules with chemical energy.
Diffusion
________: The movement of molecules in a fluid or gas from a region of higher concentration to a region of lower concentration.
Passive transport
The movement of molecules across a cell membrane without energy input from the cell
Diffusion
The movement of molecules in a fluid or gas from a region of higher concentration to a region of lower concentration
Concentration gradient
The difference in concentration of a substance from one location to another
Osmosis
The diffusion of water molecules
Isotonic
When a solution has the same concentration of dissolved particles as the cell
Hypertonic
When a solution has a higher concentration of dissolved particles than a cell
Hypotonic
When a solution has a lower concentration of dissolved particles than a cell
Facilitated diffusion
The diffusion of molecules across a membrane through transport proteins
Active transport
Moves molecules across a membrane from an area of lower concentration to an area of higher concentration
Endocytosis
The process of taking liquids or fairly large molecules into a cell by surrounding them in a membrane
Phagocytosis
A type of endocytosis where the cell membrane surrounds large particles
Exocytosis
The release of substances out of a cell by sending materials out of the membrane through a vesicle
