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22 Cards in this Set

  • Front
  • Back
the generaliation that all living things are made up of cells, cells are the basic structure and function in living things, and all cells come from preexisting cells
the cell theory
a photograph of the view through a microscope
a part of the cell with a specific job to do
thin outer boundary of a cell that regulates the traffic of chemicals between the cell and its surroundings
plasma membrane
in a cell the part that houses the cell's genetic material
region of a cell between the nucleus and the plasma membrane
cell with a nucleus
eukaryotic cell
cell lacking a nucleus and most other organelles
prokaryoctic cell
two layer sandwhich of molecules that surrounds a cell
phospholipid bilayer
the movements of particles of a substance from where they are more concentrated to where they are less concentrated
point at which the number of difusing moleculesmoving in one directonis equal to the number moving in another directon
membrane taht allows some substances to pass more easily than others and blocks the passage if some substances all together
selectivly permeable barrier
diffusion across amembrane requiring only the random motion of molecules with no energy expended by the cell
passive transport
pathway provided by transport proteins that helps certain molecules pass throgh a membrane
faciliated diffusion
passive transport of water through a selectivly permeable barrier
having a higher concentration of solute than another solution
having a lowerconcentration of solute thatn another solution
having a solute concentration equal to that of another solution
movement of molecules across a membrane requiring energy to be expended by the cell
active transport
small membrane boun sac that functions in moving products into, out of, and within a cell
process of taking material into a cell with in vesicles that bud inward from the plasma membrane
process of exproting proteins from a cell by a vesicle fusing with the plama membrane